 13 Sep, 2019 40 commits


JacquesHenri Jourdan authored
The general idea is to first import/export modules which are further than the current one, and then import/export modules which are close dependencies. This commit tries to use the same order of imports for every file, and describes the convention in ProofGuide.md. There is one exception, where we do not follow said convention: in program_logic/weakestpre.v, using that order would break printing of texan triples (??).

 12 Aug, 2019 40 commits


Ralf Jung authored

 24 Jun, 2019 40 commits
 16 Jun, 2019 40 commits


Robbert Krebbers authored
Used the following script: sed ' s/\bCofeMor/OfeMor/g; s/\c>/\d>/g; s/\bcFunctor/oFunctor/g; s/\bCFunctor/OFunctor/g; s/\b\%CF/\%OF/g; s/\bconstCF/constOF/g; s/\bidCF/idOF/g s/\bdiscreteC/discreteO/g; s/\bleibnizC/leibnizO/g; s/\bunitC/unitO/g; s/\bprodC/prodO/g; s/\bsumC/sumO/g; s/\bboolC/boolO/g; s/\bnatC/natO/g; s/\bpositiveC/positiveO/g; s/\bNC/NO/g; s/\bZC/ZO/g; s/\boptionC/optionO/g; s/\blaterC/laterO/g; s/\bofe\_fun/discrete\_fun/g; s/\bdiscrete\_funC/discrete\_funO/g; s/\bofe\_morC/ofe\_morO/g; s/\bsigC/sigO/g; s/\buPredC/uPredO/g; s/\bcsumC/csumO/g; s/\bagreeC/agreeO/g; s/\bauthC/authO/g; s/\bnamespace_mapC/namespace\_mapO/g; s/\bcmra\_ofeC/cmra\_ofeO/g; s/\bucmra\_ofeC/ucmra\_ofeO/g; s/\bexclC/exclO/g; s/\bgmapC/gmapO/g; s/\blistC/listO/g; s/\bvecC/vecO/g; s/\bgsetC/gsetO/g; s/\bgset\_disjC/gset\_disjO/g; s/\bcoPsetC/coPsetO/g; s/\bgmultisetC/gmultisetO/g; s/\bufracC/ufracO/g s/\bfracC/fracO/g; s/\bvalidityC/validityO/g; s/\bbi\_ofeC/bi\_ofeO/g; s/\bsbi\_ofeC/sbi\_ofeO/g; s/\bmonPredC/monPredO/g; s/\bstateC/stateO/g; s/\bvalC/valO/g; s/\bexprC/exprO/g; s/\blocC/locO/g; ' i $(find theories name "*.v")

 13 Mar, 2019 40 commits


Ralf Jung authored

 03 Mar, 2019 40 commits


Ralf Jung authored

 29 Oct, 2018 40 commits


JacquesHenri Jourdan authored

JacquesHenri Jourdan authored
We add a specific constructor to the type of expressions for injecting values in expressions. The advantage are :  Values can be assumed to be always closed when performing substitutions (even though they could contain free variables, but it turns out it does not cause any problem in the proofs in practice). This means that we no longer need the `Closed` typeclass and everything that comes with it (all the reflectionbased machinery contained in tactics.v is no longer necessary). I have not measured anything, but I guess this would have a significant performance impact.  There is only one constructor for values. As a result, the AsVal and IntoVal typeclasses are no longer necessary: an expression which is a value will always unify with `Val _`, and therefore lemmas can be stated using this constructor. Of course, this means that there are two ways of writing such a thing as "The pair of integers 1 and 2": Either by using the value constructor applied to the pair represented as a value, or by using the expression pair constructor. So we add reduction rules that transform reduced pair, injection and closure expressions into values. At first, this seems weird, because of the redundancy. But in fact, this has some meaning, since the machine migth actually be doing something to e.g., allocate the pair or the closure. These additional steps of computation show up in the proofs, and some additional wp_* tactics need to be called.

 03 Jul, 2018 40 commits


Ralf Jung authored
Just to cover more cases, hopefully.

 17 May, 2018 40 commits


Ralf Jung authored
move test suite out of theories/ so it does not get installed; also check output of test suite so that we can test printing

 02 May, 2018 40 commits


Ralf Jung authored

 25 Apr, 2018 40 commits


Ralf Jung authored

 30 Oct, 2017 40 commits


Robbert Krebbers authored

 25 Sep, 2017 40 commits


Dan Frumin authored
Instead of writing a separate tactic lemma for each pure reduction, there is a single tactic lemma for performing all of them. The instances of PureExec can be shared between WP tactics and, e.g. symbolic execution in the ghost threadpool

 09 Sep, 2017 40 commits


Robbert Krebbers authored

 20 Mar, 2017 40 commits


Robbert Krebbers authored

 25 Jan, 2017 40 commits


Ralf Jung authored
Also add "Local" to some Default Proof Using to keep them more contained

 09 Jan, 2017 40 commits


Ralf Jung authored

 06 Jan, 2017 40 commits


Ralf Jung authored

 05 Jan, 2017 40 commits


Ralf Jung authored

 03 Jan, 2017 40 commits


Ralf Jung authored
This patch was created using find name *.v  xargs L 1 awk i inplace '{from = 0} /^From/{ from = 1; ever_from = 1} { if (from == 0 && seen == 0 && ever_from == 1) { print "Set Default Proof Using \"Type*\"."; seen = 1 } }1 ' and some minor manual editing

 15 Dec, 2016 40 commits


Robbert Krebbers authored

 09 Dec, 2016 40 commits


Ralf Jung authored

Ralf Jung authored
Thanks to Robbert for fixing gen_heap

Robbert Krebbers authored
The WP construction now takes an invariant on states as a parameter (part of the irisG class) and no longer builds in the authoritative ownership of the entire state. When instantiating WP with a concrete language on can choose its state invariant. For example, for heap_lang we directly use `auth (gmap loc (frac * dec_agree val))`, and avoid the indirection through invariants entirely. As a result, we no longer have to carry `heap_ctx` around.

 08 Dec, 2016 40 commits


Ralf Jung authored

 06 Dec, 2016 40 commits


Ralf Jung authored

 22 Nov, 2016 40 commits


Ralf Jung authored

 09 Nov, 2016 40 commits


Robbert Krebbers authored

 03 Nov, 2016 40 commits


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.

 01 Nov, 2016 40 commits


Ralf Jung authored
Now we try to avoid adding them unnecessarily, so we don't have to remove them automatically any more.

 27 Oct, 2016 40 commits


Robbert Krebbers authored

 25 Oct, 2016 40 commits


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.

Robbert Krebbers authored
And also rename the corresponding proof mode tactics.

 05 Oct, 2016 40 commits


Robbert Krebbers authored

 09 Sep, 2016 40 commits


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.

 25 Aug, 2016 40 commits


Robbert Krebbers authored

 08 Aug, 2016 40 commits


Robbert Krebbers authored
This makes stuff more uniform and also removes the need for the [inGFs] type class. Instead, there is now a type class [subG Σ1 Σ2] which expresses that a list of functors [Σ1] is contained in [Σ2].
