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Raymond Reiter · Artificial Intelligence · 1980 · 3.9K citations
Johan de Kleer, Brian C. Williams · Artificial Intelligence · 1987 · 2.1K citations
Circumscription—A form of non-monotonic reasoning
John McCarthy · Artificial Intelligence · 1980 · 2K citations
Jon Doyle · Artificial Intelligence · 1979 · 1.8K citations · Full text