# Difference between revisions of "Logic"

Logic is the systematic use of symbolic and mathematical techniques to determine the forms of valid deductive or inductive argument. it is sometimes considered a branch of abstract algebra.

## Logical Notation

Main article: Logical notation

Logical notation is a special syntax that is shorthand for logical statements.

For example, both $p\to q$ and $p \subset q$ mean that p implies q, or "If p, then q." Note that this can be also written $p \cup ~q$, or "p or not q".