# Symbolic Logic {BOOLEAN ALGEBRA}

Boolean algebra derives its name from the mathematician George Boole. Symbolic Logic uses values, variables and operations :

True is represented by the value 1.

False is represented by the value 0.

Variables are represented by letters and can have one of two values, either 0 or 1. Operations are functions of one or more variables.

AND is represented by X.Y

OR is represented by X + Y

NOT is represented by X' . Throughout this tutorial the X' form will be used and sometime !X will be used.

These basic operations can be combined to give expressions.

Example :

X

X.Y

W.X.Y + Z

True is represented by the value 1.

False is represented by the value 0.

Variables are represented by letters and can have one of two values, either 0 or 1. Operations are functions of one or more variables.

AND is represented by X.Y

OR is represented by X + Y

NOT is represented by X' . Throughout this tutorial the X' form will be used and sometime !X will be used.

These basic operations can be combined to give expressions.

Example :

X

X.Y

W.X.Y + Z