predicate_kind/2

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Predicate predicate_kind/2

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Documentation
- Reference manual
  - Built-in Predicates
    - Printing messages
      - Printing from libraries
        
        Referring to predicates from a message
        
        predicate_reference//1
        
        predicate_reference//2
        
        predicate_definition//2
        
        predicate_kind/2
- Packages

[semidet]predicate_kind(+Spec, -Kind)

Classify a predicate as iso, built_in, foreign, library(Name), module(Module), user or undefined. This is the classification used by the tag(true) option above. Fails if Spec does not denote a predicate.