Guarded Horn Clauses

<language> (GHC) A parallel dialect of Prolog by K. Ueda in which each clause has a guard.

GHC is similar to Parlog.

When several clauses match a goal, their guards are evaluated in parallel and the first clause whose guard is found to be true is used and others are rejected.

It uses committed-choice nondeterminism.

See also FGHC, KL1.

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