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  1. The existential assumptions of traditional logic.Dwayne Hudson Mulder - 1996 - History and Philosophy of Logic 17 (1 & 2):141-154.
    There have been and continue to be disagreements about how to consider the traditional square of opposition and the traditional inferences of obversion, conversion, contraposition and inversion from the perspective of contemporary quantificational logic. Philosophers have made many different attempts to save traditional inferences that are invalid when they involve empty classes. I survey some of these attempts and argue that the only satisfactory way of saving all the traditional inferences is to make the existential assumption that both the subject (...)
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  • Negation and Quantification in Aristotle.Michael V. Wedin - 1990 - History and Philosophy of Logic 11 (2):131-150.
    Two main claims are defended. The first is that negative categorical statements are not to be accorded existential import insofar as they figure in the square of opposition. Against Kneale and others, it is argued that Aristotle formulates his o statements, for example, precisely to avoid existential commitment. This frees Aristotle's square from a recent charge of inconsistency. The second claim is that the logic proper provides much thinner evidence than has been supposed for what appears to be the received (...)
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  • Empty Terms in Aristotle’s Logic.Crivelli Paolo - 2002 - Proceedings of the Boston Area Colloquium of Ancient Philosophy 17 (1):237-284.
  • The existential assumptions of traditional logic.Dwayne Hudson Mulder - 1996 - History and Philosophy of Logic 17 (1-2):141-154.
    There have been and continue to be disagreements about how to consider the traditional square of opposition and the traditional inferences of obversion, conversion, contraposition and inversion from the perspective of contemporary quantificational logic. Philosophers have made many different attempts to save traditional inferences that are invalid when they involve empty classes. I survey some of these attempts and argue that the only satisfactory way of saving all the traditional inferences is to make the existential assumption that both the subject (...)
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  • Selected Bibliography on Aristotle's Theory of Categorical Syllogism.Raul Corazzon - unknown
    "However that may be, Aristotelian syllogistic concerned itself exclusively with monadic predicates. Hence it could not begin to investigate multiple quantification. And that is why it never got very far. None the less, the underlying grammar of Aristotle's logic did not in itself..
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