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nonvar(?Term)
Succeeds if Term is instantiated.
- Term
- Any Prolog term.
Description
    Used to test whether Term is instantiated.  This is the negation of var/1,
    i.e. it succeeds if Term is not an uninstantiated variable.
    Note that it also succeeds if Term is a partially instantiated term,
    i.e. a compound term with at least one uninstantiated subterm.
Modes and Determinism
Fail Conditions
Fails if Term is not instantiated
Examples
   Success:
   nonvar(atom).
   nonvar(33).
   nonvar(foo(3)).
   nonvar(foo(_)).
   nonvar([_|_]).
   Fail:
   nonvar(Var).
See Also
nonground / 1, type_of / 2, var / 1