Theoretical Computer Science · 1988 · 419 citations · 14 references
HumanitiesComputer ScienceMathematicsFormal MethodsLogicSemanticsFirst-order LogicModel TheoryPropositional LogicTemporal Knowledge RepresentationTemporal LogicKripke StructuresPropositional Logic SemanticsPropositional Temporal LogicSyntax Of Propositional Logic
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The complexity of propositional linear temporal logics
A. Prasad Sistla, E. M. Clarke · Journal of the ACM · 1985 · 1.1K citations · Full text
“Sometimes” and “not never” revisited
E. Allen Emerson, Joseph Y. Halpern · Journal of the ACM · 1986 · 996 citations · Full text