Tag Archives: Modern Logic

Logical Errors in a Logic Textbook, Alas!

Posted on May 14, 2018 by Rchard E. Hennessey

1. Early on in his Socratic Logic, Peter Kreeft offers what I’ll take to be two arguments in favor of a thesis that traditional, or Aristotelian, logic is superior to modern, or symbolic or mathematical, logic, that, indeed, modern logic … Continue reading →

Posted in Logic | Tagged After Aristotle, Aristotelian Logic, Logic, Mathematical Logic, Modern Logic, Peter Kreeft, Peter Kreeft's Socratic Logic, Richard Hennessey, Sound Argument, Symbolic Logic, Traditional Logic, Valid Argument | Leave a comment

Universal Propositions and “Existential Import”

Posted on April 13, 2014 by Rchard E. Hennessey

Introduction. In a note (25, p. 171) in Christopher Shields’ quite admirable overview, Aristotle (2nd edition; London and New York: Routledge, 2014), we find the following passage, setting forth (Ibid., p. 143) the “three simple and, he [Aristotle] thinks, intuitively … Continue reading →

Posted in Aristotelian Logic, Logic, Modern Logic | Tagged Aristotelian Logic, Christopher Shields' Aristotle, Conversion, Copi’s Introduction to Logic, Epistemology, Existential Import, Henry Babcock Veatch's Intentional Logic, Henry Babcock Veatch's Two Logics, Modern Logic, Ontology, Particular Affirmative Propositions, Philosophical Anthropology, Propositions, Reductio ad Absurdum, Universal Affirmative Propositions, Universal Negative Propositions, WordPress | Leave a comment

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Tag Archives: Modern Logic

Logical Errors in a Logic Textbook, Alas!

Universal Propositions and “Existential Import”

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