In propositional logic, modus tollens (/ˈmoʊdəs ˈtɒlɛnz/) (MT), also known as modus tollendo tollens (Latin for "method of removing by taking away") and...

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...

Modus ponendo tollens (MPT; Latin: "mode that denies by affirming") is a valid rule of inference for propositional logic. It is closely related to modus...

known as modus ponens, not to be mistaken with modus tollens, which is another valid argument form that has a like-sounding name and structure. Modus ponens...

logical form. There are various rules of inference, such as modus ponens and modus tollens. Invalid deductive arguments, which do not follow a rule of...

criminal profiler Latin phrases Modus ponens – Rule of logical inference Modus tollens – Rule of logical inference Modus vivendi – Arrangement that allows...

captured clearly in Fred Dretske's aphorism that "one man's modus ponens is another man's modus tollens". His response takes the following form: If S knows that...

Quebec Agreement. Latin phrases Modus operandi – Habits of working Modus ponens – Rule of logical inference Modus tollens – Rule of logical inference Angus...

ω-rule. Popular rules of inference in propositional logic include modus ponens, modus tollens, and contraposition. First-order predicate logic uses rules of...

and two are invalid. Affirming the antecedent (modus ponens) and denying the consequent (modus tollens) are valid. Affirming the consequent and denying...