Temporal Logic with Forgettable Past

F. Laroussinie N. Markey Ph. Schnoebelen

To appear at Symposium on Logic in Computer Science (LICS'2002), Copenhagen, Denmark, July 22nd - 25th, 2002


We investigate NLTL, a temporal logic with forgettable past. We study satisfiability and model checking for NLTL and provide optimal automata-theoretic algorithms for these EXPSPACE-complete problems. We also prove a succinctness gap between NLTL and LTL+Past, and between LTL+Past and LTL partly answering a folk conjecture.

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