Conjunction, disjunction, and inclusion operators

and

conjunction

True, if operands A and B both evaluate to true. If both A and B are integers, returns the result of a bitwise AND operation.

or

inclusive disjunction

True, if either operand A or operand B evaluates to true. If both A and B are integers, returns the result of a bitwise OR operation.

in ..

membership in a range

1 if true and 0 if false

in ()

membership in a discrete set

1 if true and 0 if false