Operations AND, OR, and XOR (exclusive OR), and NOT are defined, thinking of 1 as true and 0 as false.

So, for example, 1 AND 1 is 1, while 1 AND 0 is 0.

p	q	p AND q
0	0	0
0	1	0
1	0	0
1	1	1

p	q	p OR q
0	0	0
0	1	1
1	0	1
1	1	1

p	q	p XOR q
0	0	0
0	1	1
1	0	1
1	1	0

p	NOT p
0	1
1	0

Curious facts:

1. NOT p is a unary operator.

   There are exactly 2 unary operators.

2. p AND q, p OR q, and p XOR q are binary operators.

   There are exactly 16 different possible binary operators: p OP q.

   However, each such binary operator can easily be expressed using a combination of only the AND, OR, and NOT operators.