Class bool

Class bool has the values denoted by literals true and false.

The following binary operators are provided between Boolean objects:

&	logical "and"
|	logical "or"
==>	implication (e.g. a ==> b means the same as ~a | b )
<==	reverse implication (e.g. a <== b means the same as a | ~b )
<==>	equivalence (e.g. a <==> b means the same as a = b )

and the following unary operator:

~	logical negation ("not")

For the binary operators, the second operand need not be well defined if the value of the expression can be determined from the first operand alone (e.g. the expression  i = 0 | (10/i > 3)  is well-formed).

Aside from the operators, class bool has one other interface member:

function toString: string

returns "true" or "false" as appropriate

Class bool is a final class, so other classes cannot inherit from it.

Next:  Class char