converse law of contraposition

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• contraposition — I noun antagonism, antithesis, confrontation, confrontment, contradiction, contradistinction, contrariety, contrast, converse, counterpart, disagreement, disparity, dissimilarity, incompatibility, obverse, odds, opposite, opposite side,… …   Law dictionary

• converse — I verb address, advise, allocute, answer, articulate, attest to, carry on a conversation, comment on, commune with, communicate with, confabulate, confer with, conferre, consult with, debate, descant, discourse, discuss, dissertate, exchange… …   Law dictionary

• Contraposition (traditional logic) — In traditional logic, contraposition is a form of immediate inference in which from a given proposition another is inferred having for its subject the contradictory of the original predicate, and in some cases involving a change of quality… …   Wikipedia

• antithesis — I noun absolute difference, adverseness, antipode, balanced contrast, conflict, contentio, contradiction, contradistinction, contraposition, contrariety, contrarium, contrary, contrast, converse, counterpart, counterpole, direct opposite,… …   Law dictionary

• antipode — I noun absolute difference, adverseness, adversus, antimony, antipathy, antipodes, antipole, antithesis, collision, conflict, contradiction, contradistinction, contraindication, contraposition, contrariety, contrariness, contrary, contrast,… …   Law dictionary

• opposite — I adjective absonant, adversarius, adverse, antagonistic, antipodal, antipodean, antithetic, antithetical, clashing, conflicting, contradictive, contradictory, contrarius, contrary, contrasted, contrasting, converse, counter, diametrically… …   Law dictionary

• Transposition (logic) — In the methods of deductive reasoning in classical logic, transposition is the rule of inference that permits one to infer from the truth of A implies B the truth of Not B implies not A , and conversely . [Brody, Bobuch A. Glossary of Logical… …   Wikipedia

• Outline of logic — The following outline is provided as an overview of and topical guide to logic: Logic – formal science of using reason, considered a branch of both philosophy and mathematics. Logic investigates and classifies the structure of statements and… …   Wikipedia

• Propositional calculus — In mathematical logic, a propositional calculus or logic (also called sentential calculus or sentential logic) is a formal system in which formulas of a formal language may be interpreted as representing propositions. A system of inference rules… …   Wikipedia

• List of philosophy topics (A-C) — 110th century philosophy 11th century philosophy 12th century philosophy 13th century philosophy 14th century philosophy 15th century philosophy 16th century philosophy 17th century philosophy 18th century philosophy 19th century philosophy220th… …   Wikipedia

• Material conditional — The material conditional, also known as material implication, is a binary truth function, such that the compound sentence p→q (typically read if p then q or p implies q ) is logically equivalent to the negative compound: not (p and not q). A… …   Wikipedia