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What does temporal logic add to a representation?

  • A.Explicit reference to the times at which facts hold
  • B.The ability to reason about the duration of a computation
  • C.A means of ordering the inference steps of a proof
  • D.Degrees of belief that vary as evidence accumulates

Answer: A

Temporal logic adds times or intervals to the ontology, so that a fact may hold at one moment and not at another and reasoning about change becomes possible. Computation duration, proof ordering and belief revision are different matters. Adding one further kind of entity to what a formalism assumes exists, and the machinery to quantify over it, is how each extension in this family is constructed.

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