modus ponens

noun 0.781

affirming the consequent

noun 0.613

modus

noun 0.612

deductive reasoning

noun 0.571

disjunctive syllogism

noun 0.566

contrapositive

noun 0.546

contraposition

noun 0.542

syllogism

noun 0.529

negative proof

noun 0.525

via negativa

noun 0.524

reductio ad absurdum

noun 0.523

strict implication

noun 0.522

logical fallacy

noun 0.512

classical logic

noun 0.503