1. 06 Jun, 2014 2 commits
    • Robbert Krebbers's avatar
      Small stream library. · af633db2
      Robbert Krebbers authored
      af633db2
    • Robbert Krebbers's avatar
      Miscellaneous changes to the memory · ab930b45
      Robbert Krebbers authored
      * Remove generic path_typed instance for lists. For the zippers in the
        operational semantics, it goes the other way around.
      * Remove constructor lemmas for values/memory_trees and use a generic tactic
        instead. This tactic uses the standard constructor tactic, but folds the
        type classes afterward.
      ab930b45
  2. 05 Jun, 2014 3 commits
    • Robbert Krebbers's avatar
      Hashsets based on radix-2 search trees. · 3ce93174
      Robbert Krebbers authored
      3ce93174
    • Robbert Krebbers's avatar
      Preparation to port the master branch · d60affc0
      Robbert Krebbers authored
      Major changes:
      * A data structure to collect locked addresses in memory.
      * Operations to lock and unlock addresses.
      * Remove [ctree_Forall] and express it using [Forall] and [ctree_flatten]. This
        saves a lot of lines of code.
      * Add a [void] value. This value cannot be typed, but will be used as a dummy
        return value for functions with return type [void].
      
      Minor changes:
      * Various deciders in preparation of the executable semantics.
      * Improve naming and notations.
      * Remove obsolete stuff.
      d60affc0
    • Robbert Krebbers's avatar
      Improve [decompose_elem_of] tactic. · 46799584
      Robbert Krebbers authored
      Conflicts:
      	collections.v
      46799584
  3. 24 May, 2014 1 commit
  4. 22 May, 2014 1 commit
    • Robbert Krebbers's avatar
      Various changes. · bb9d75d9
      Robbert Krebbers authored
      * Parametrize refinements with memories. This way, refinements imply typing,
        for example [w1 ⊑{Γ,f@m1↦m2} w2 : τ → (Γ,m1) ⊢ w1 : τ]. This relieves us from
        various hacks.
      * Use addresses instead of index/references pairs for lookup and alter
        operations on memories.
      * Prove various disjointness properties.
      bb9d75d9
  5. 04 May, 2014 1 commit
  6. 02 May, 2014 3 commits
  7. 09 Sep, 2013 2 commits
  8. 27 Aug, 2013 1 commit
  9. 21 Aug, 2013 4 commits
  10. 15 Aug, 2013 1 commit
  11. 14 Aug, 2013 1 commit
  12. 12 Aug, 2013 1 commit
    • Robbert Krebbers's avatar
      Finite maps and sets using ordered association lists. · bc659ba4
      Robbert Krebbers authored
      This commit includes the following changes:
      * More theorems about pre-, partial and total orders.
      * Define the lexicographic order on various commonly used data types.
      * Mergesort and its correctness proof.
      * Implement finite maps and sets using ordered association lists.
      bc659ba4
  13. 24 Jun, 2013 2 commits
  14. 17 Jun, 2013 2 commits
  15. 21 May, 2013 1 commit
  16. 15 May, 2013 1 commit
  17. 12 May, 2013 1 commit
  18. 11 May, 2013 2 commits
  19. 07 May, 2013 1 commit
    • Robbert Krebbers's avatar
      Lots of refactoring. and new results on permutations and list containment. · 361308c7
      Robbert Krebbers authored
      The refactoring includes:
      * Use infix notations for the various list relations
      * More consistent naming
      * Put lemmas on one line whenever possible
      * Change proofs into one-liners when possible
      * Make better use of the "Implicit Types" command
      * Improve the order of the list module by placing all definitions at the start,
        then the proofs, and finally the tactics.
      
      Besides, there is some new machinery for proofs by reflection on lists. It is
      used for a decision procedure for permutations and list containment.
      361308c7
  20. 02 Apr, 2013 1 commit
  21. 25 Mar, 2013 1 commit
  22. 14 Mar, 2013 1 commit
  23. 24 Feb, 2013 1 commit
  24. 22 Feb, 2013 1 commit
  25. 19 Feb, 2013 1 commit
    • Robbert Krebbers's avatar
      Support sequence point, add permissions, and update prelude. · 415a4f1c
      Robbert Krebbers authored
      Both the operational and axiomatic semantics are extended with sequence points
      and a permission system based on fractional permissions. In order to achieve
      this, the memory model has been completely revised, and is now built on top
      of an abstract interface for permissions.
      
      Apart from these changed, the library on lists and sets has been heavily
      extended, and minor changed have been made to other parts of the prelude.
      415a4f1c
  26. 01 Feb, 2013 1 commit
  27. 09 Jan, 2013 2 commits