Logical Operators 

Logical operators used in the Logic Template are operators that operate on the operands as logical values of FALSE or TRUE, that is zero or nonzero.
Three types of equivalence operators are supported:
Operator 
Description 
"!" 
The unary negation operator NOT returns 0 for nonzero operand and 1 for operand of 0. 
"" 
The binary operator INCLUSIVE OR returns 1 if either operand is nonzero otherwise it returns 0. 
"&&" 
The binary operator RESTRICTIVE AND returns 1 if both operands are nonzero otherwise it returns 0. 