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  1. Survey of Precursors Of Category Theory • 6
    inquiryintoinquiry.com/2025/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2024/05
    2. inquiryintoinquiry.com/2024/05
    3. inquiryintoinquiry.com/2024/05
    4. inquiryintoinquiry.com/2024/05
    5. inquiryintoinquiry.com/2024/05
    6. inquiryintoinquiry.com/2024/05

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #FunctionalLogic #RelationTheory
    #PrecursorsOfCategoryTheory #PropositionsAsTypes #Semiotics #TypeTheory

  2. Survey of Precursors Of Category Theory • 6
    inquiryintoinquiry.com/2025/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2024/05
    2. inquiryintoinquiry.com/2024/05
    3. inquiryintoinquiry.com/2024/05
    4. inquiryintoinquiry.com/2024/05
    5. inquiryintoinquiry.com/2024/05
    6. inquiryintoinquiry.com/2024/05

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #FunctionalLogic #RelationTheory
    #PrecursorsOfCategoryTheory #PropositionsAsTypes #Semiotics #TypeTheory

  3. Survey of Precursors Of Category Theory • 6
    inquiryintoinquiry.com/2025/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2024/05
    2. inquiryintoinquiry.com/2024/05
    3. inquiryintoinquiry.com/2024/05
    4. inquiryintoinquiry.com/2024/05
    5. inquiryintoinquiry.com/2024/05
    6. inquiryintoinquiry.com/2024/05

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #FunctionalLogic #RelationTheory
    #PrecursorsOfCategoryTheory #PropositionsAsTypes #Semiotics #TypeTheory

  4. Survey of Precursors Of Category Theory • 6
    inquiryintoinquiry.com/2025/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2024/05
    2. inquiryintoinquiry.com/2024/05
    3. inquiryintoinquiry.com/2024/05
    4. inquiryintoinquiry.com/2024/05
    5. inquiryintoinquiry.com/2024/05
    6. inquiryintoinquiry.com/2024/05

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #FunctionalLogic #RelationTheory
    #PrecursorsOfCategoryTheory #PropositionsAsTypes #Semiotics #TypeTheory

  5. Survey of Precursors Of Category Theory • 6
    inquiryintoinquiry.com/2025/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2024/05
    2. inquiryintoinquiry.com/2024/05
    3. inquiryintoinquiry.com/2024/05
    4. inquiryintoinquiry.com/2024/05
    5. inquiryintoinquiry.com/2024/05
    6. inquiryintoinquiry.com/2024/05

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #FunctionalLogic #RelationTheory
    #PrecursorsOfCategoryTheory #PropositionsAsTypes #Semiotics #TypeTheory

  6. Precursors Of Category Theory • 3
    inquiryintoinquiry.com/2024/05

    ❝Act only according to that maxim by which you can at the same time will that it should become a universal law.❞

    — Immanuel Kant (1785)

    C.S. Peirce • “On a New List of Categories” (1867)

    ❝§1. This paper is based upon the theory already established, that the function of conceptions is to reduce the manifold of sensuous impressions to unity, and that the validity of a conception consists in the impossibility of reducing the content of consciousness to unity without the introduction of it.❞ (CP 1.545).

    ❝§2. This theory gives rise to a conception of gradation among those conceptions which are universal. For one such conception may unite the manifold of sense and yet another may be required to unite the conception and the manifold to which it is applied; and so on.❞ (CP 1.546).

    Cued by Kant's idea regarding the function of concepts in general, Peirce locates his categories on the highest levels of abstraction able to provide a meaningful measure of traction in practice. Whether successive grades of conceptions converge to an absolute unity or not is a question to be pursued as inquiry progresses and need not be answered in order to begin.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  7. Precursors Of Category Theory • 3
    inquiryintoinquiry.com/2024/05

    ❝Act only according to that maxim by which you can at the same time will that it should become a universal law.❞

    — Immanuel Kant (1785)

    C.S. Peirce • “On a New List of Categories” (1867)

    ❝§1. This paper is based upon the theory already established, that the function of conceptions is to reduce the manifold of sensuous impressions to unity, and that the validity of a conception consists in the impossibility of reducing the content of consciousness to unity without the introduction of it.❞ (CP 1.545).

    ❝§2. This theory gives rise to a conception of gradation among those conceptions which are universal. For one such conception may unite the manifold of sense and yet another may be required to unite the conception and the manifold to which it is applied; and so on.❞ (CP 1.546).

    Cued by Kant's idea regarding the function of concepts in general, Peirce locates his categories on the highest levels of abstraction able to provide a meaningful measure of traction in practice. Whether successive grades of conceptions converge to an absolute unity or not is a question to be pursued as inquiry progresses and need not be answered in order to begin.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  8. Precursors Of Category Theory • 3
    inquiryintoinquiry.com/2024/05

    ❝Act only according to that maxim by which you can at the same time will that it should become a universal law.❞

    — Immanuel Kant (1785)

    C.S. Peirce • “On a New List of Categories” (1867)

    ❝§1. This paper is based upon the theory already established, that the function of conceptions is to reduce the manifold of sensuous impressions to unity, and that the validity of a conception consists in the impossibility of reducing the content of consciousness to unity without the introduction of it.❞ (CP 1.545).

    ❝§2. This theory gives rise to a conception of gradation among those conceptions which are universal. For one such conception may unite the manifold of sense and yet another may be required to unite the conception and the manifold to which it is applied; and so on.❞ (CP 1.546).

    Cued by Kant's idea regarding the function of concepts in general, Peirce locates his categories on the highest levels of abstraction able to provide a meaningful measure of traction in practice. Whether successive grades of conceptions converge to an absolute unity or not is a question to be pursued as inquiry progresses and need not be answered in order to begin.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  9. Precursors Of Category Theory • 3
    inquiryintoinquiry.com/2024/05

    ❝Act only according to that maxim by which you can at the same time will that it should become a universal law.❞

    — Immanuel Kant (1785)

    C.S. Peirce • “On a New List of Categories” (1867)

    ❝§1. This paper is based upon the theory already established, that the function of conceptions is to reduce the manifold of sensuous impressions to unity, and that the validity of a conception consists in the impossibility of reducing the content of consciousness to unity without the introduction of it.❞ (CP 1.545).

    ❝§2. This theory gives rise to a conception of gradation among those conceptions which are universal. For one such conception may unite the manifold of sense and yet another may be required to unite the conception and the manifold to which it is applied; and so on.❞ (CP 1.546).

    Cued by Kant's idea regarding the function of concepts in general, Peirce locates his categories on the highest levels of abstraction able to provide a meaningful measure of traction in practice. Whether successive grades of conceptions converge to an absolute unity or not is a question to be pursued as inquiry progresses and need not be answered in order to begin.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  10. Precursors Of Category Theory • 3
    inquiryintoinquiry.com/2024/05

    ❝Act only according to that maxim by which you can at the same time will that it should become a universal law.❞

    — Immanuel Kant (1785)

    C.S. Peirce • “On a New List of Categories” (1867)

    ❝§1. This paper is based upon the theory already established, that the function of conceptions is to reduce the manifold of sensuous impressions to unity, and that the validity of a conception consists in the impossibility of reducing the content of consciousness to unity without the introduction of it.❞ (CP 1.545).

    ❝§2. This theory gives rise to a conception of gradation among those conceptions which are universal. For one such conception may unite the manifold of sense and yet another may be required to unite the conception and the manifold to which it is applied; and so on.❞ (CP 1.546).

    Cued by Kant's idea regarding the function of concepts in general, Peirce locates his categories on the highest levels of abstraction able to provide a meaningful measure of traction in practice. Whether successive grades of conceptions converge to an absolute unity or not is a question to be pursued as inquiry progresses and need not be answered in order to begin.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  11. Precursors Of Category Theory • 2.3
    inquiryintoinquiry.com/2024/05

    In the logic of Aristotle categories are adjuncts to reasoning whose function is to resolve ambiguities and thus to prepare equivocal signs, otherwise recalcitrant to being ruled by logic, for the application of logical laws. The example of ζωον illustrates the fact that we don't need categories to “make” generalizations so much as to “control” generalizations, to reign in abstractions and analogies which have been stretched too far.

    References —

    • Aristotle, “The Categories”, Harold P. Cooke (trans.), pp. 1–109 in Aristotle, Volume 1, Loeb Classical Library, William Heinemann, London, UK, 1938.

    • Karpeles, Eric (2008), Paintings in Proust, Thames and Hudson, London, UK.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  12. Precursors Of Category Theory • 2.3
    inquiryintoinquiry.com/2024/05

    In the logic of Aristotle categories are adjuncts to reasoning whose function is to resolve ambiguities and thus to prepare equivocal signs, otherwise recalcitrant to being ruled by logic, for the application of logical laws. The example of ζωον illustrates the fact that we don't need categories to “make” generalizations so much as to “control” generalizations, to reign in abstractions and analogies which have been stretched too far.

    References —

    • Aristotle, “The Categories”, Harold P. Cooke (trans.), pp. 1–109 in Aristotle, Volume 1, Loeb Classical Library, William Heinemann, London, UK, 1938.

    • Karpeles, Eric (2008), Paintings in Proust, Thames and Hudson, London, UK.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  13. Precursors Of Category Theory • 2.3
    inquiryintoinquiry.com/2024/05

    In the logic of Aristotle categories are adjuncts to reasoning whose function is to resolve ambiguities and thus to prepare equivocal signs, otherwise recalcitrant to being ruled by logic, for the application of logical laws. The example of ζωον illustrates the fact that we don't need categories to “make” generalizations so much as to “control” generalizations, to reign in abstractions and analogies which have been stretched too far.

    References —

    • Aristotle, “The Categories”, Harold P. Cooke (trans.), pp. 1–109 in Aristotle, Volume 1, Loeb Classical Library, William Heinemann, London, UK, 1938.

    • Karpeles, Eric (2008), Paintings in Proust, Thames and Hudson, London, UK.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  14. Precursors Of Category Theory • 2.3
    inquiryintoinquiry.com/2024/05

    In the logic of Aristotle categories are adjuncts to reasoning whose function is to resolve ambiguities and thus to prepare equivocal signs, otherwise recalcitrant to being ruled by logic, for the application of logical laws. The example of ζωον illustrates the fact that we don't need categories to “make” generalizations so much as to “control” generalizations, to reign in abstractions and analogies which have been stretched too far.

    References —

    • Aristotle, “The Categories”, Harold P. Cooke (trans.), pp. 1–109 in Aristotle, Volume 1, Loeb Classical Library, William Heinemann, London, UK, 1938.

    • Karpeles, Eric (2008), Paintings in Proust, Thames and Hudson, London, UK.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  15. Precursors Of Category Theory • 2.3
    inquiryintoinquiry.com/2024/05

    In the logic of Aristotle categories are adjuncts to reasoning whose function is to resolve ambiguities and thus to prepare equivocal signs, otherwise recalcitrant to being ruled by logic, for the application of logical laws. The example of ζωον illustrates the fact that we don't need categories to “make” generalizations so much as to “control” generalizations, to reign in abstractions and analogies which have been stretched too far.

    References —

    • Aristotle, “The Categories”, Harold P. Cooke (trans.), pp. 1–109 in Aristotle, Volume 1, Loeb Classical Library, William Heinemann, London, UK, 1938.

    • Karpeles, Eric (2008), Paintings in Proust, Thames and Hudson, London, UK.

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2024/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  16. Precursors Of Category Theory • 2.2
    inquiryintoinquiry.com/2024/05

    Aristotle —

    ❝Things are equivocally named, when they have the name only in common, the definition (or statement of essence) corresponding with the name being different. For instance, while a man and a portrait can properly both be called animals (ζωον), these are equivocally named. For they have the name only in common, the definitions (or statements of essence) corresponding with the name being different. For if you are asked to define what the being an animal means in the case of the man and the portrait, you give in either case a definition appropriate to that case alone.

    ❝Things are univocally named, when not only they bear the same name but the name means the same in each case — has the same definition corresponding. Thus a man and an ox are called animals. The name is the same in both cases; so also the statement of essence. For if you are asked what is meant by their both of them being called animals, you give that particular name in both cases the same definition.❞ (Aristotle, Categories, 1.1a1–12).

    Translator's Note. ❝Ζωον in Greek had two meanings, that is to say, living creature, and, secondly, a figure or image in painting, embroidery, sculpture. We have no ambiguous noun. However, we use the word ‘living’ of portraits to mean ‘true to life’.❞

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  17. Precursors Of Category Theory • 2.2
    inquiryintoinquiry.com/2024/05

    Aristotle —

    ❝Things are equivocally named, when they have the name only in common, the definition (or statement of essence) corresponding with the name being different. For instance, while a man and a portrait can properly both be called animals (ζωον), these are equivocally named. For they have the name only in common, the definitions (or statements of essence) corresponding with the name being different. For if you are asked to define what the being an animal means in the case of the man and the portrait, you give in either case a definition appropriate to that case alone.

    ❝Things are univocally named, when not only they bear the same name but the name means the same in each case — has the same definition corresponding. Thus a man and an ox are called animals. The name is the same in both cases; so also the statement of essence. For if you are asked what is meant by their both of them being called animals, you give that particular name in both cases the same definition.❞ (Aristotle, Categories, 1.1a1–12).

    Translator's Note. ❝Ζωον in Greek had two meanings, that is to say, living creature, and, secondly, a figure or image in painting, embroidery, sculpture. We have no ambiguous noun. However, we use the word ‘living’ of portraits to mean ‘true to life’.❞

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  18. Precursors Of Category Theory • 2.2
    inquiryintoinquiry.com/2024/05

    Aristotle —

    ❝Things are equivocally named, when they have the name only in common, the definition (or statement of essence) corresponding with the name being different. For instance, while a man and a portrait can properly both be called animals (ζωον), these are equivocally named. For they have the name only in common, the definitions (or statements of essence) corresponding with the name being different. For if you are asked to define what the being an animal means in the case of the man and the portrait, you give in either case a definition appropriate to that case alone.

    ❝Things are univocally named, when not only they bear the same name but the name means the same in each case — has the same definition corresponding. Thus a man and an ox are called animals. The name is the same in both cases; so also the statement of essence. For if you are asked what is meant by their both of them being called animals, you give that particular name in both cases the same definition.❞ (Aristotle, Categories, 1.1a1–12).

    Translator's Note. ❝Ζωον in Greek had two meanings, that is to say, living creature, and, secondly, a figure or image in painting, embroidery, sculpture. We have no ambiguous noun. However, we use the word ‘living’ of portraits to mean ‘true to life’.❞

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  19. Precursors Of Category Theory • 2.2
    inquiryintoinquiry.com/2024/05

    Aristotle —

    ❝Things are equivocally named, when they have the name only in common, the definition (or statement of essence) corresponding with the name being different. For instance, while a man and a portrait can properly both be called animals (ζωον), these are equivocally named. For they have the name only in common, the definitions (or statements of essence) corresponding with the name being different. For if you are asked to define what the being an animal means in the case of the man and the portrait, you give in either case a definition appropriate to that case alone.

    ❝Things are univocally named, when not only they bear the same name but the name means the same in each case — has the same definition corresponding. Thus a man and an ox are called animals. The name is the same in both cases; so also the statement of essence. For if you are asked what is meant by their both of them being called animals, you give that particular name in both cases the same definition.❞ (Aristotle, Categories, 1.1a1–12).

    Translator's Note. ❝Ζωον in Greek had two meanings, that is to say, living creature, and, secondly, a figure or image in painting, embroidery, sculpture. We have no ambiguous noun. However, we use the word ‘living’ of portraits to mean ‘true to life’.❞

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  20. Precursors Of Category Theory • 2.2
    inquiryintoinquiry.com/2024/05

    Aristotle —

    ❝Things are equivocally named, when they have the name only in common, the definition (or statement of essence) corresponding with the name being different. For instance, while a man and a portrait can properly both be called animals (ζωον), these are equivocally named. For they have the name only in common, the definitions (or statements of essence) corresponding with the name being different. For if you are asked to define what the being an animal means in the case of the man and the portrait, you give in either case a definition appropriate to that case alone.

    ❝Things are univocally named, when not only they bear the same name but the name means the same in each case — has the same definition corresponding. Thus a man and an ox are called animals. The name is the same in both cases; so also the statement of essence. For if you are asked what is meant by their both of them being called animals, you give that particular name in both cases the same definition.❞ (Aristotle, Categories, 1.1a1–12).

    Translator's Note. ❝Ζωον in Greek had two meanings, that is to say, living creature, and, secondly, a figure or image in painting, embroidery, sculpture. We have no ambiguous noun. However, we use the word ‘living’ of portraits to mean ‘true to life’.❞

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  21. Precursors Of Category Theory • 2.1
    inquiryintoinquiry.com/2024/05

    ❝Thanks to art, instead of seeing one world only, our own, we see that world multiply itself and we have at our disposal as many worlds as there are original artists …❞

    — Marcel Proust

    When it comes to looking for the continuities of the category concept across different systems and systematizers, we don't expect to find their kinship in the names or numbers of categories, since those are legion and their divisions deployed on widely different planes of abstraction, but in their common function.

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  22. Precursors Of Category Theory • 2.1
    inquiryintoinquiry.com/2024/05

    ❝Thanks to art, instead of seeing one world only, our own, we see that world multiply itself and we have at our disposal as many worlds as there are original artists …❞

    — Marcel Proust

    When it comes to looking for the continuities of the category concept across different systems and systematizers, we don't expect to find their kinship in the names or numbers of categories, since those are legion and their divisions deployed on widely different planes of abstraction, but in their common function.

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  23. Precursors Of Category Theory • 2.1
    inquiryintoinquiry.com/2024/05

    ❝Thanks to art, instead of seeing one world only, our own, we see that world multiply itself and we have at our disposal as many worlds as there are original artists …❞

    — Marcel Proust

    When it comes to looking for the continuities of the category concept across different systems and systematizers, we don't expect to find their kinship in the names or numbers of categories, since those are legion and their divisions deployed on widely different planes of abstraction, but in their common function.

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  24. Precursors Of Category Theory • 2.1
    inquiryintoinquiry.com/2024/05

    ❝Thanks to art, instead of seeing one world only, our own, we see that world multiply itself and we have at our disposal as many worlds as there are original artists …❞

    — Marcel Proust

    When it comes to looking for the continuities of the category concept across different systems and systematizers, we don't expect to find their kinship in the names or numbers of categories, since those are legion and their divisions deployed on widely different planes of abstraction, but in their common function.

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  25. Precursors Of Category Theory • 2.1
    inquiryintoinquiry.com/2024/05

    ❝Thanks to art, instead of seeing one world only, our own, we see that world multiply itself and we have at our disposal as many worlds as there are original artists …❞

    — Marcel Proust

    When it comes to looking for the continuities of the category concept across different systems and systematizers, we don't expect to find their kinship in the names or numbers of categories, since those are legion and their divisions deployed on widely different planes of abstraction, but in their common function.

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  26. Precursors Of Category Theory • 1
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. My notes on the project are still very rough and incomplete but I find myself returning to them from time to time.

    Preamble —

    ❝Now the discovery of ideas as general as these is chiefly the willingness to make a brash or speculative abstraction, in this case supported by the pleasure of purloining words from the philosophers: “Category” from Aristotle and Kant, “Functor” from Carnap (“Logische Syntax der Sprache”), and “natural transformation” from then current informal parlance.❞

    — Saunders Mac Lane • “Categories for the Working Mathematician”

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2025/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  27. Precursors Of Category Theory • 1
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. My notes on the project are still very rough and incomplete but I find myself returning to them from time to time.

    Preamble —

    ❝Now the discovery of ideas as general as these is chiefly the willingness to make a brash or speculative abstraction, in this case supported by the pleasure of purloining words from the philosophers: “Category” from Aristotle and Kant, “Functor” from Carnap (“Logische Syntax der Sprache”), and “natural transformation” from then current informal parlance.❞

    — Saunders Mac Lane • “Categories for the Working Mathematician”

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2025/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  28. Precursors Of Category Theory • 1
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. My notes on the project are still very rough and incomplete but I find myself returning to them from time to time.

    Preamble —

    ❝Now the discovery of ideas as general as these is chiefly the willingness to make a brash or speculative abstraction, in this case supported by the pleasure of purloining words from the philosophers: “Category” from Aristotle and Kant, “Functor” from Carnap (“Logische Syntax der Sprache”), and “natural transformation” from then current informal parlance.❞

    — Saunders Mac Lane • “Categories for the Working Mathematician”

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2025/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  29. Precursors Of Category Theory • 1
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. My notes on the project are still very rough and incomplete but I find myself returning to them from time to time.

    Preamble —

    ❝Now the discovery of ideas as general as these is chiefly the willingness to make a brash or speculative abstraction, in this case supported by the pleasure of purloining words from the philosophers: “Category” from Aristotle and Kant, “Functor” from Carnap (“Logische Syntax der Sprache”), and “natural transformation” from then current informal parlance.❞

    — Saunders Mac Lane • “Categories for the Working Mathematician”

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2025/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  30. Precursors Of Category Theory • 1
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. My notes on the project are still very rough and incomplete but I find myself returning to them from time to time.

    Preamble —

    ❝Now the discovery of ideas as general as these is chiefly the willingness to make a brash or speculative abstraction, in this case supported by the pleasure of purloining words from the philosophers: “Category” from Aristotle and Kant, “Functor” from Carnap (“Logische Syntax der Sprache”), and “natural transformation” from then current informal parlance.❞

    — Saunders Mac Lane • “Categories for the Working Mathematician”

    Resources —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2025/05

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  31. Survey of Precursors Of Category Theory • 5
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  32. Survey of Precursors Of Category Theory • 5
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  33. Survey of Precursors Of Category Theory • 5
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  34. Survey of Precursors Of Category Theory • 5
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  35. Survey of Precursors Of Category Theory • 5
    inquiryintoinquiry.com/2024/05

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    C.S. Peirce and Category Theory
    1. inquiryintoinquiry.com/2021/06
    2. inquiryintoinquiry.com/2021/06
    3. inquiryintoinquiry.com/2021/06
    4. inquiryintoinquiry.com/2021/06
    5. inquiryintoinquiry.com/2021/06
    6. inquiryintoinquiry.com/2021/06
    7. inquiryintoinquiry.com/2021/07
    8. inquiryintoinquiry.com/2021/07

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  36. I ask your #aesthetic appreciation for the cover to the 1967 English translation of Rudolf #Carnap's The Logical Structure of the World.

    Really effective use of #Helvetica, simple in a way you don't see covers so often any more. It's as if the words themselves make up a kind of logical structure which, however, does not seem so sturdy as the logical positivist would like..

  37. Survey of Precursors Of Category Theory • 4
    inquiryintoinquiry.com/2023/08

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  38. Survey of Precursors Of Category Theory • 4
    inquiryintoinquiry.com/2023/08

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  39. Survey of Precursors Of Category Theory • 4
    inquiryintoinquiry.com/2023/08

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  40. Survey of Precursors Of Category Theory • 4
    inquiryintoinquiry.com/2023/08

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  41. Survey of Precursors Of Category Theory • 4
    inquiryintoinquiry.com/2023/08

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    Background —

    Precursors Of Category Theory
    oeis.org/wiki/Precursors_Of_Ca

    Propositions As Types Analogy
    oeis.org/wiki/Propositions_As_

    Blog Series —

    Notes On Categories
    inquiryintoinquiry.com/2013/02

    Precursors Of Category Theory
    1. inquiryintoinquiry.com/2013/12
    2. inquiryintoinquiry.com/2013/12
    3. inquiryintoinquiry.com/2014/01

    Precursors Of Category Theory • Discussion
    1. inquiryintoinquiry.com/2020/09
    2. inquiryintoinquiry.com/2020/09
    3. inquiryintoinquiry.com/2020/09

    Categories à la Peirce —

    C.S. Peirce • A Guess at the Riddle
    inquiryintoinquiry.com/2012/03

    Peirce's Categories
    1. inquiryintoinquiry.com/2015/10
    2. inquiryintoinquiry.com/2015/10
    3. inquiryintoinquiry.com/2015/11
    •••
    19. inquiryintoinquiry.com/2020/05
    20. inquiryintoinquiry.com/2020/05
    21. inquiryintoinquiry.com/2020/06

    #Aristotle #Peirce #Kant #Carnap #Hilbert #Ackermann #SaundersMacLane
    #Abstraction #Analogy #CategoryTheory #Diagrams #FoundationsOfMathematics
    #FunctionalLogic #RelationTheory #ContinuousPredicate #HypostaticAbstraction
    #CategoryTheory #PeircesCategories #PropositionsAsTypes #TypeTheory #Universals

  42. Survey of Precursors Of Category Theory
    inquiryintoinquiry.com/2023/04

    A few years ago I began a sketch on the “Precursors of Category Theory”, tracing the continuities of the category concept from Aristotle, to Kant and Peirce, through Hilbert and Ackermann, to contemporary mathematical practice. A Survey of resources on the topic is given below, still very rough and incomplete, but perhaps a few will find it of use.

    #CategoryTheory #CombinatoryLogic #LambdaCalculus #RelationTheory
    #Aristotle #Kant #Peirce #Schönfinkel #Hilbert #Ackermann #Carnap
    #HaskellCurry #WilliamHoward #JoachimLambek #SaundersMacLane
    #PropositionsAsTypesAnalogy #CurryHowardIsomorphism #Ulam