Assertion: logic | /r/HasProperty | ctl
Facets:
Source sentences:
text: Also variants of the basic linear-time models have been proposed for verification, such as branching-time temporal logic (and, in particular the logics CTL (computation tree logic) and its extension CTL* (Emerson 1990), in which one can reason explicitly about (quantification over) alternative paths in nondeterministic computations, and more recently also an extension of CTL, called alternating-time temporal logic (ATL), with a modality expressing that a group of agents has a joint strategy to ensure its argument, to reason about so-called open systems.