1. 31 Oct, 2016 3 commits
  2. 30 Oct, 2016 1 commit
  3. 28 Oct, 2016 10 commits
  4. 27 Oct, 2016 17 commits
  5. 26 Oct, 2016 6 commits
  6. 25 Oct, 2016 3 commits
    • Robbert Krebbers's avatar
      Rename uPred_eq into uPred_internal_eq. · e224e891
      Robbert Krebbers authored
      e224e891
    • Robbert Krebbers's avatar
      260b7508
    • Robbert Krebbers's avatar
      Generalize update tactics into iMod and iModIntro for modalities. · fc30ca08
      Robbert Krebbers authored
      There are now two proof mode tactics for dealing with modalities:
      
      - `iModIntro` : introduction of a modality
      - `iMod pm_trm as (x1 ... xn) "ipat"` : eliminate a modality
      
      The behavior of these tactics can be controlled by instances of the `IntroModal`
      and `ElimModal` type class. We have declared instances for later, except 0,
      basic updates and fancy updates. The tactic `iMod` is flexible enough that it
      can also eliminate an updates around a weakest pre, and so forth.
      
      The corresponding introduction patterns of these tactics are `!>` and `>`.
      
      These tactics replace the tactics `iUpdIntro`, `iUpd` and `iTimeless`.
      
      Source of backwards incompatability: the introduction pattern `!>` is used for
      introduction of arbitrary modalities. It used to introduce laters by stripping
      of a later of each hypotheses.
      fc30ca08