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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