prolog_code:semicolon

comma_list(?CommaList, ?List)
semicolon_list(?SemicolonList, ?List): True if CommaList is a nested term over the ','/2 (';'/2) functor and List is a list expressing the elements of the conjunction. The predicate is deterministic if at least CommaList or List is sufficiently instantiated. If both are partial structures it enumerates ever growing conjunctions and lists. CommaList may be left or right associative on input. When generated, the CommaList is always right associative.
This predicate is typically used to reason about Prolog conjunctions (disjunctions) as many operations are easier on lists than on binary trees over some operator.