1. 09 Nov, 2017 1 commit
  2. 08 Nov, 2017 4 commits
  3. 26 Oct, 2017 1 commit
  4. 25 Oct, 2017 1 commit
    • Robbert Krebbers's avatar
      Make `iDestruct ... as (cpat) "..."` work on '⌜φ⌝ ∧ P` and `⌜φ⌝ ∗ P`. · c5045145
      Robbert Krebbers authored
      The advantage is that we can directly use a Coq introduction pattern
      `cpat` to perform actions to the pure assertion. Before, this had
      to be done in several steps:
      
        iDestruct ... as "[Htmp ...]"; iDestruct "Htmp" as %cpat.
      
      That is, one had to introduce a temporary name.
      
      I expect this to be quite useful in various developments as many of
      e.g. our invariants are written as:
      
        ∃ x1 .. x2, ⌜ pure stuff ⌝ ∗ spacial stuff.
      c5045145
  5. 27 Sep, 2017 1 commit
    • Robbert Krebbers's avatar
      Fix issue #99. · 7ed067a9
      Robbert Krebbers authored
      This causes a bit of backwards incompatibility: it may now succeed with
      later stripping below unlocked/TC transparent definitions. This problem
      actually occured for `wsat`.
      7ed067a9
  6. 26 Sep, 2017 1 commit
    • Robbert Krebbers's avatar
      Fix issue #98. · e17ac4ad
      Robbert Krebbers authored
      We used to normalize the goal, and then checked whether it was of
      a certain shape. Since `uPred_valid P` normalized to `True ⊢ P`,
      there was no way of making a distinction between the two, hence
      `True ⊢ P` was treated as `uPred_valid P`.
      
      In this commit, I use type classes to check whether the goal is of
      a certain shape. Since we declared `uPred_valid` as `Typeclasses
      Opaque`, we can now make a distinction between `True ⊢ P` and
      `uPred_valid P`.
      e17ac4ad
  7. 24 Mar, 2017 1 commit
  8. 15 Mar, 2017 1 commit
  9. 11 Feb, 2017 1 commit
  10. 24 Jan, 2017 1 commit
  11. 12 Jan, 2017 1 commit
  12. 09 Jan, 2017 1 commit
  13. 06 Jan, 2017 1 commit
  14. 05 Jan, 2017 1 commit
  15. 03 Jan, 2017 1 commit
  16. 09 Dec, 2016 4 commits
  17. 24 Nov, 2016 1 commit
  18. 22 Nov, 2016 1 commit
  19. 03 Nov, 2016 1 commit
    • Robbert Krebbers's avatar
      Use symbol ∗ for separating conjunction. · cc31476d
      Robbert Krebbers authored
      The old choice for ★ was a arbitrary: the precedence of the ASCII asterisk *
      was fixed at a wrong level in Coq, so we had to pick another symbol. The ★ was
      a random choice from a unicode chart.
      
      The new symbol ∗ (as proposed by David Swasey) corresponds better to
      conventional practise and matches the symbol we use on paper.
      cc31476d
  20. 28 Oct, 2016 2 commits
  21. 25 Oct, 2016 4 commits
  22. 12 Oct, 2016 1 commit
  23. 05 Oct, 2016 1 commit
  24. 09 Sep, 2016 1 commit
    • Robbert Krebbers's avatar
      Support for specialization of P₁ -★ .. -★ Pₙ -★ Q where Q is persistent. · 090aaea3
      Robbert Krebbers authored
      Before this commit, given "HP" : P and "H" : P -★ Q with Q persistent, one
      could write:
      
        iSpecialize ("H" with "#HP")
      
      to eliminate the wand in "H" while keeping the resource "HP". The lemma:
      
        own_valid : own γ x ⊢ ✓ x
      
      was the prototypical example where this pattern (using the #) was used.
      
      However, the pattern was too limited. For example, given "H" : P₁ -★ P₂ -★ Q",
      one could not write iSpecialize ("H" with "#HP₁") because P₂ -★ Q is not
      persistent, even when Q is.
      
      So, instead, this commit introduces the following tactic:
      
        iSpecialize pm_trm as #
      
      which allows one to eliminate implications and wands while being able to use
      all hypotheses to prove the premises, as well as being able to use all
      hypotheses to prove the resulting goal.
      
      In the case of iDestruct, we now check whether all branches of the introduction
      pattern start with an `#` (moving the hypothesis to the persistent context) or
      `%` (moving the hypothesis to the pure Coq context). If this is the case, we
      allow one to use all hypotheses for proving the premises, as well as for proving
      the resulting goal.
      090aaea3
  25. 28 Aug, 2016 1 commit
  26. 23 Aug, 2016 1 commit
  27. 22 Aug, 2016 2 commits
  28. 08 Aug, 2016 2 commits