Logic/Propositional logic
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From Wikipedia, the free encyclopedia | From Wikipedia, the free encyclopedia | ||
Revision as of 03:27, 23 May 2014
Logic > Propositional logic
Contents
Propositional calculus
From Wikipedia, the free encyclopedia
In mathematical logic, a propositional calculus or logic (also called sentential calculus or sentential logic) is a formal system in which formulas of a formal language may be interpreted to represent propositions. A system of inference rules and axioms allows certain formulas to be derived. These derived formulas are called theorems and may be interpreted to be true propositions. Such a constructed sequence of formulas is known as a derivation or proof and the last formula of the sequence is the theorem. The derivation may be interpreted as proof of the proposition represented by the theorem.
