LTL ∩ PCTL is decidable because an LTL formula defines a PCTL-expressible tree language iff its word language is DBW-recognizable, via a new HWTcf automata characterization of PCTL.
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Deciding the Common Fragment of CTL with Past and LTL
LTL ∩ PCTL is decidable because an LTL formula defines a PCTL-expressible tree language iff its word language is DBW-recognizable, via a new HWTcf automata characterization of PCTL.