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    Carmelics

    A reasoning platform. Break down any belief into clear reasons, explore both sides, and weigh the evidence honestly.

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    LoyalLoyalJusticeJustice
    Made withinDC&Austin
    Statements
    321,452
    Perspectives
    108,905
    Topics
    42
    Home/Original/inverse
    See Original
    Inverse View

    It is not the case that Every donkey is a man

    ?Set your confidence on the premises below to see your aggregate.

    Reasons For

    2 perspectives
    Reason for 1 of 2
    ?
    • 1.Exclusive propositions ('only A is B') restrict predication asymmetrically, not symmetrically across subject and predicate terms.
      ?

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    • 2.The conversion of 'Only a man is a donkey' yields 'Every donkey is a man' only if donkeys exist, but the original proposition is true in a vacuously empty domain of donkeys.
      ?

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    • 3.Buridan and Ockham distinguished syncategorematic terms like 'only' as altering suppositional range, blocking simple conversion of exclusives into universals.
      ?

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    Reason for 2 of 2
    ?
    • 1.The material supposition of 'donkey' and 'man' in universal propositions requires actual referents for truth, not merely formal equivalence of propositional structure.
      ?

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    • 2.Peter of Spain's doctrine of supposition entails that 'every donkey is a man' makes a positive existential commitment that 'only a man is a donkey' does not share.
      ?

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    Reasons Against

    1 perspective
    Reason against
    ?
    • 1.Only a man is a donkey
      ?

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    • 2.An exclusive proposition and a universal proposition with transposed terms signify the same thing and are convertible
      ?

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    Strongest counterpoint
    Explore the most compelling reason on the other side.