Boolean

Boolean = {False, True}
boolean = Boolean
false = False
true = True

Boolean is a predefined type representing the two truth values represented by the two predefined constants False and True (the case of the first letter is not significant).

Boolean values arise from expressions involving the operators:

  = /= < <= > >= subset not subset in not in
  not
  and
  or

Expressions which must result in Boolean values are termed conditions.

Predefined functions associated with values of type Boolean:
ascending descending even odd

Herman Venter

This is Slim documentation as snarfed on 27 May 1999 by dB.