#Boolean Expression Interpreter

####To run: $ python bei.py

####Evaluate Expression

> x=true
> y=false
> x and y
False

####Compare Expressions

> cmpr (x and y) or (x and z) | x and (y or z)
Equivalent

####Create Truth Table

> tt x or y
+------------------------+
|   x   |   y   | x or y |
|------------------------|
| True  | True  |   True |
|------------------------|
| True  | False |   True |
|------------------------|
| False | True  |   True |
|------------------------|
| False | False |  False |
+------------------------+

####Exit REPL > q

####Operator precedence is not implemented correctly at moment so clear ambiguities with parenthesis