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Language peer sets for OPS4:
United States
United States/1979
Designed 1979
1970s languages
Fourth generation
High Cold War
Genus RETE and production
Specialised Languages
RETE and production
Data representation
RETE and production/1979
Context-based /1979
Data representation/1979
RETE and production/United States
Context-based /United States
Data representation/United States
Specialised Languages
Specialised Languages/1979
Specialised Languages/us


Official Production System version 4 

alternate simple view
Country: United States
Designed 1979
Genus: RETE and production
Sammet category: Specialised Languages

version 4 of CMU OPS

Related languages
OPS3 OPS4   Evolution of
OPS4 OPS5   Evolution of

  • Forgy, C.L. (1979) Forgy, C.L. "OPS4 Users Manual". Department of Computer Science, CMU 1979.
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