### Some articles on *logically equivalent, logically*:

Method Of Analytic Tableaux - Propositional Logic - Conditional

... means that the left hand side formula is

... means that the left hand side formula is

**logically equivalent**to the right hand side formula If we start with an arbitrary formula C of classical logic, and apply these ... that every formula C of classical logic has a**logically equivalent**formula C' in negation normal form ...Converse (logic) - Implicational Converse

... about the verity of its converse, unless the antecedent P and the consequent Q are

... about the verity of its converse, unless the antecedent P and the consequent Q are

**logically equivalent**... the statement "If I am a bachelor, then I am an unmarried man" is**logically equivalent**to "If I am an unmarried man, then I am a bachelor." A truth table makes it clear that S and the converse of S are not**logically**...Inverse (logic)

... Since a double negation has no logical effect, the inverse of the inverse is

... Since a double negation has no logical effect, the inverse of the inverse is

**logically equivalent**to the original conditional ... The inverse and the converse of a conditional are**logically equivalent**to each other, just as the conditional and its contrapositive are**logically equivalent**to each ...### Famous quotes containing the words equivalent and/or logically:

“Inter-railers are the ambulatory *equivalent* of McDonalds, walking testimony to the erosion of French culture.”

—Alice Thompson (b. 1963)

“[This] atheistic [movement] must *logically* result in the utter annihilation of the family.”

—James A. Garfield (1831–1881)

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