Boolean Math


==	Comparison


Example:

T == T
= T

F == F
= T



Operators

&& 	AND
||	OR
!	NOT

Example AND

T && F
= F

T && T
= T

F && F
= F


Example OR

F || T
= T

F || F
= F

T || T
= T


Example NOT
!T
= F

!F
= T




A little more complex

T && (F || T)
= T && ( T )
= T


Something mental

(T && !(F || F)) && T
=(T && !( F ))  && T
=(T && T) && T
=( T ) && T
= T



Something deceptive

(((!F && (T || !T) && F))) || T
= T


F && F && !(T || !F)
= F




Now for something more useful

if(choice == 'A' || choice =='a'){


}

Example

var x = 5

Condition:

if(x > 2 && x < 8)
     T   &&   T
if( T ) 



if( x < 20 && x > 7)
      T    &&   F

if (  F  )