Table of Logical Equivalences
integral-table.com/downloads/logic.pdf20.07.2011 · Conditional (p =)q) ()(˘p_q) ˘(p =)q) ()(p^˘q) Rules of Inference Modus Ponens p =)q Modus Tollens p =)q p ˘q) q )˘p Elimination p_q Transitivity p =)q ˘q q =)r) p ) p =)r Generalization p =)p_q Specialization p^q =)p q =)p_q p^q =)q Conjunction p Contradiction Rule ˘p =)F q ) p) p^q « 2011 B.E.Shapiro forintegral-table.com.
Logical biconditional - Wikipedia
https://en.wikipedia.org/wiki/Logical_biconditionalIn logic and mathematics, the logical biconditional, sometimes known as the material biconditional, is the logical connective () used to conjoin two statements P and Q to form the statement "P if and only if Q", where P is known as the antecedent, and Q the consequent. This is often abbreviated as "P iff Q". Other ways of denoting this operator may be seen occasionally, as a double-headed …
Table of Logical Equivalences
integral-table.com › downloads › logicJul 20, 2011 · Conditional (p =)q) ()(˘p_q) ˘(p =)q) ()(p^˘q) Rules of Inference Modus Ponens p =)q Modus Tollens p =)q p ˘q) q )˘p Elimination p_q Transitivity p =)q ˘q q =)r) p ) p =)r Generalization p =)p_q Specialization p^q =)p q =)p_q p^q =)q Conjunction p Contradiction Rule ˘p =)F q ) p) p^q « 2011 B.E.Shapiro forintegral-table.com.
Logical equivalence - Wikipedia
https://en.wikipedia.org/wiki/Logical_equivalenceIn logic and mathematics, statements and are said to be logically equivalent if they are provable from each other under a set of axioms, or have the same truth value in every model. The logical equivalence of and is sometimes expressed as , , , or , depending on the notation being used. However, these symbols are also used for material equivalence, so proper interpretation would depend on the context. Logical equivalence is different from material equivalence, although the t…