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?Expr1 #\= ?Expr2
The integer value of Expr1 is not equal to the integer value of Expr2.
- Expr1
- An integer arithmetic expression
- Expr2
- An integer arithmetic expression
Description
Suspends until both Expr1 and Expr2 are ground, and then both arguments
are evaluated and compared, succeeding iff they are both integers and are
not equal.
Modules
This predicate is sensitive to its module context (tool predicate, see @/2).
Fail Conditions
fails if the value of Expr1 is equal to the value of Expr2, or if either do not evaluate to an integer.
Exceptions
- (24) number expected
- Expr1 or Expr2 is not an arithmetic expression.
See Also
#\= / 3, ic : #\= / 2, gfd : #\= / 2, fd : #\= / 2