1. 24 Mar, 2017 4 commits
    • Robbert Krebbers's avatar
    • Robbert Krebbers's avatar
      Generic big operators that are no longer tied to CMRAs. · 6fbff46e
      Robbert Krebbers authored
      Instead, I have introduced a type class `Monoid` that is used by the big operators:
      
          Class Monoid {M : ofeT} (o : M → M → M) := {
            monoid_unit : M;
            monoid_ne : NonExpansive2 o;
            monoid_assoc : Assoc (≡) o;
            monoid_comm : Comm (≡) o;
            monoid_left_id : LeftId (≡) monoid_unit o;
            monoid_right_id : RightId (≡) monoid_unit o;
          }.
      
      Note that the operation is an argument because we want to have multiple monoids over
      the same type (for example, on `uPred`s we have monoids for `∗`, `∧`, and `∨`). However,
      we do bundle the unit because:
      
      - If we would not, the unit would appear explicitly in an implicit argument of the
        big operators, which confuses rewrite. By bundling the unit in the `Monoid` class
        it is hidden, and hence rewrite won't even see it.
      - The unit is unique.
      
      We could in principle have big ops over setoids instead of OFEs. However, since we do
      not have a canonical structure for bundled setoids, I did not go that way.
      6fbff46e
    • Robbert Krebbers's avatar
      Remove Hints and Instances that are no longer needed. · c52ff261
      Robbert Krebbers authored
      Big ops over list with a cons reduce, hence these just follow
      immediately from conversion.
      c52ff261
    • Robbert Krebbers's avatar
      15bfdc15
  2. 22 Mar, 2017 1 commit
  3. 21 Mar, 2017 2 commits
  4. 20 Mar, 2017 4 commits
  5. 15 Mar, 2017 7 commits
  6. 14 Mar, 2017 4 commits
  7. 09 Mar, 2017 2 commits
  8. 06 Mar, 2017 1 commit
  9. 01 Mar, 2017 1 commit
  10. 22 Feb, 2017 2 commits
  11. 16 Feb, 2017 1 commit
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  13. 11 Feb, 2017 2 commits
  14. 09 Feb, 2017 2 commits
  15. 06 Feb, 2017 1 commit
  16. 02 Feb, 2017 1 commit
  17. 27 Jan, 2017 1 commit
  18. 26 Jan, 2017 1 commit
    • Robbert Krebbers's avatar
      Fix issue #68. · 2550dff5
      Robbert Krebbers authored
      TODO: document the setup of the IntoWand and WandWeaken type classes
      and the tricks using Hint Mode.
      2550dff5
  19. 23 Jan, 2017 1 commit
  20. 22 Jan, 2017 1 commit