modus tollens

noun modus tol·lens \ -ˈtäˌlenz \

Definition of modus tollens

plural modi tollentes \-(ˌ)täˈlen‧ˌtēz\
: a mode of reasoning from a hypothetical proposition according to which if the consequent be denied the antecedent is denied (as, if A is true, B is true; but B is false; therefore A is false)

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Origin and Etymology of modus tollens

New Latin, removing mode


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