varnumbers:varnumbers/3

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Predicate varnumbers/3

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swipl
- library

varnumbers(+Term, +Start, -Copy) is det

Inverse of numbervars/3. True when Copy is a copy of Term with all variables numbered >= Start consistently replaced by fresh variables. Variables in Term are shared with Copy rather than replaced by fresh variables.

Errors: - domain_error(acyclic_term, Term) if Term is cyclic.
Compatibility: - Quintus, SICStus. Not in YAP version of this library