AND gate

AND gate truth table
Input		Output
A	B	A AND B
0	0	0
0	1	0
1	0	0
1	1	1

In digital electronics, an AND gate is a logic gate which produces an output of true when all its inputs are true. A LOW (0) output results when any of the inputs to the gate are LOW; if all of the inputs are HIGH (1), a HIGH output results.

Logic

A two-input AND gate can be expressed in Boolean logic as $A\cdot B$, $A\wedge B$ or $A\And B$.