TGHC: timed guarded Horn clauses

A description is given of the design principles, syntax, and semantics of the distributed real-time programming language TGHC (timed guarded Horn clauses). TGHC is a descendant of concurrent logic programming languages and it is capable of explicitly expressing time constraints by introducing the timed guard to GHC. A formal semantics of a subset of TGHC is also given.<
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