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?Term1 \== ?Term2
Succeeds if Term1 and Term2 are not identical terms.
- Term1
- An arbitrary term.
- Term2
- An arbitrary term.
Description
   Used to compare the terms Term1 with Term2.  Succeeds if Term1
   and Term2 are not identical terms.  Two variables are considered as
   identical only if one is bound to the other one, or if they are bound to
   identical terms.
Modes and Determinism
Fail Conditions
Fails if Term1 and Term2 are identical.
Examples
Success:
   atom \== neutron.
   atom \== X.
   X \== atom.
   1 \== 1.0.
   X \== Y.
   [a|b] \== [a,b].
   [a|X] \== [a,X].
   f(a,b) \== [f,a,b].
   f(1,2,3) \== f(1,2,3.0).
Fail:
   a \== a.
   X \== X.
   X = Y, X \== Y.
   [a,b|[]] \== [a,b].
See Also
== / 2, \= / 2