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Modus ponens - Wikipedia

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In propositional logic, modus ponens (/ˈmoʊdəs ˈpoʊnɛnz/; MP), also known as modus ponendo ponens (from Latin 'method of putting by placing'),[1] implication elimination, or affirming the antecedent,[2] is a deductive argument form and rule of inference.[3] It can be summarized as "P implies Q. P is true. Therefore, Q must also be true." Modus ponens is a mixed hypothetical syllogism and is closely related to another valid form of argument, modus tollens. Both have apparently similar but invalid forms: affirming the consequent and denying the antecedent. Constructive dilemma is the disjunctive version of modus ponens. The history of modus ponens goes back to antiquity.[4] The first to explicitly describe the argument form modus ponens was Theophrastus.[5] It, along with modus tollens, is one of the standard patterns of inference that can be applied to derive chains of conclusions that lead to the desired goal. The form of a modus ponens argument is a mixed hypothetical syllogism, with

Modus ponens - Wikipedia Jump to content From Wikipedia, the free encyclopedia "Forward reasoning" redirects here. For other uses, see Forward chaining . Rule of logical inference P</math> implies <math>Q</math>. <math>P</math> is true. Therefore, <math>Q</math> must also be true."},"symbolic statement":{"wt":"<math>P \\to Q,\\; P\\; \\vdash\\ Q</math>"}},"i":0}}]}'> Modus ponens Type Deductive argument form Rule of inference Field Classical logic Propositional calculus Statement P {\displaystyle P} implies Q {\displaystyle Q} . P {\displaystyle P} is true. Therefore, Q {\displaystyle Q} must

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