6.2.9 Boolean (Intrinsic)

The intrinsic Boolean represents boolean values, i.e. it can only assume true and false (which are predefined constants). This type corresponds to the enumerated type

     type
       Boolean = (False, True);

Since it is declared this way, it follows:

     Ord (False) = 0
     Ord (True) = 1
     False < True

There are four intrinsic logical operators. The logical and, or and not. In Borland Pascal and GNU Pascal, there is a logical “exclusive or” xor.

See also

Enumerated Types, and, or, not, xor