Abstract | ||
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Regular terms with the Kleene operations &ugr;,;, and * can be thought of as operators on languages, generating other languages. An equation r1 &equil; r2 between two such terms is said to be satisfiable just in case languages exist which make this equation true. We show that the satisfiability problem even for *-free regular terms is undecidable. Similar techniques are used to show that a very natural extension of the Process Logic of Harel, Kozen and Parikh is undecidable. |
Year | DOI | Venue |
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1981 | 10.1145/800076.802493 | STOC |
Keywords | Field | DocType |
satisfiability problem,similar technique,regular term,case language,process logic,natural extension,kleene operation,equation r1,free regular term,petri net,decidability,satisfiability | Discrete mathematics,Combinatorics,Petri net,Computer science,Vector addition system,Boolean satisfiability problem,Decidability,Operator (computer programming),Reachability problem,Process logic,Undecidable problem | Conference |
Citations | PageRank | References |
15 | 4.72 | 4 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Ashok K. Chandra | 1 | 3116 | 1215.02 |
Joseph Y. Halpern | 2 | 9617 | 1618.10 |
Albert R. Meyer | 3 | 1729 | 604.47 |
Rohit Parikh | 4 | 1510 | 540.65 |