Individual km#temporal_logic  system of rules and symbolism for representing, and reasoning about, propositions qualified in terms of time
  >part of:  modal_logic__intensional_logic__intensionallogic  sentences are qualified by modalities such as possibly and necessarily; both "Bush is president" and "2+2=4" are true, yet "Necessarily, Bush is president" is false, while "Necessarily, 2+2=4" is true
  url:  http://en.wikipedia.org/wiki/Temporal_logic
  >part:  tense_logic__tenselogic
  >part:  computational_tree_logic__CTL
  >part:  linear_temporal_logic

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