Modus tollens

noun

Definitions

1.nounA valid form of argument in which the consequent of a conditional proposition is denied, thus implying the denial of the antecedent. Modus tollens has this form:

"1. If P, then Q."

Synonyms

modus ponendo tollens modus tollendo tollens modus tollendo ponens modus ponens modus ponendo ponens affirming the consequent modal counterfactual material conditional semifactual consequent conditional proof

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