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searching for Material implication (rule of inference) 9 found (43 total)

alternate case: material implication (rule of inference)

Rule of inference (7,293 words) [view diff] no match in snippet view article find links to article

true premises follows a rule of inference then the conclusion cannot be false. Modus ponens, an influential rule of inference, connects two premises of

Contraposition (6,175 words) [view diff] no match in snippet view article find links to article

This is often called the law of contrapositive, or the modus tollens rule of inference. In the Euler diagram shown, if something is in A, it must be in B

Outline of logic (2,119 words) [view diff] no match in snippet view article find links to article

Propositional formula Rule of inference Sentence (mathematical logic) Sequent Statement (logic) Subalternation Tautology Theorem Rule of inference (list) Biconditional

Three-valued logic (3,292 words) [view diff] no match in snippet view article find links to article

AND C... = MIN(A, B, C ...) and A OR B OR C ... = MAX(A, B, C...). Material implication for Kleene logic can be defined as: A → B = d e f OR ( NOT

Logical connective (3,164 words) [view diff] no match in snippet view article find links to article

between natural language and classical logic include the paradoxes of material implication, donkey anaphora and the problem of counterfactual conditionals.

Boolean algebra (9,572 words) [view diff] no match in snippet view article find links to article

Material conditional The first operation, x → y, or Cxy, is called material implication. If x is true, then the result of expression x → y is taken to be

Natural deduction (7,284 words) [view diff] no match in snippet view article find links to article

combination, which in turn is of lower precedence than the arrow, used for material implication; so no parentheses are needed to interpret this formula.) Syntactic

Propositional formula (11,131 words) [view diff] no match in snippet view article find links to article

needed] p.80. Tarski p.54-68. Suppes calls IDENTITY a "further rule of inference" and has a brief development around it; Robbin, Bender and Williamson

Glossary of logic (30,237 words) [view diff] no match in snippet view article find links to article

possible worlds which are considered in modal reasoning. addition A rule of inference in formal logic where from any proposition, a disjunction can be formed