The negation of a statement is a statement that has the opposite meaning as the original statement. The negation of the statement p can be written as not p or using the symbol ¬.

Consider an example statement and its negation. Statement:& A square is a rectangle. Negation:& A square isnota rectangle. A negation always has the opposite truth value than the original statement. This can be expressed using a truth table.

Negation
p	¬ p
T	F
F	T