mattam82/Coq-Equations: Equations 1.3beta1 for Coq 8.13
Creators
- Matthieu Sozeau1
- Pierre-Marie Pédrot
- Cyprien Mangin
- Emilio Jesús Gallego Arias
- Gaëtan Gilbert1
- Maxime Dénès
- Robin Green
- Hugo Herbelin
- Enrico Tassi2
- Guillaume Claret
- Siddharth3
- Anton Trunov4
- Joachim Breitner5
- Antonio Nikishaev
- Jim Fehrle
- SimonBoulier
- Søren Nørbæk
- Théo Zimmermann6
- Vincent Laporte
- Yves Bertot1
- 1. Inria
- 2. @coq @math-comp @LPCIC
- 3. IIIT Hyderabad
- 4. @Zilliqa
- 5. @dfinity-lab
- 6. @Inria / Université de Paris
Description
Equations 1.3
This is a new major release of Equations, working with Coq 8.13, 8.12 and 8.11. This version adds an improved syntax (less ;
-separation), integration with the Coq-HoTT library (for Coq 8.13 only) and numerous bug fixes. It introduces minor breaking changes along with the following features:
Improved syntax for "concise" clauses separated by
|
, at top-level or insidewith
subprograms. We no longer require to separated them by;
. For example, the following definition is now accepted:Equations foo : nat -> nat := | 0 => 1 | S n => S (foo n).
The old syntax is however still supported for backwards compatibility.
Require Import Equations.Equations.
does not work anymore. One has to useRequire Import Equations.Prop.Equations
to load the plugin's default instance where equality is inProp
.From Equations Require Import Equations
is unaffected.- Use
Require Import Equations.HoTT.All
to use the HoTT variant of the library compatible with the Coq HoTT library The plugin then reuses the definition ofpaths
from the HoTT library and all its constructions are universe polymorphic. As for the HoTT library alone, coq must be passed the arguments-noinit -indices-matter
to use the library and plugin. Thecoq-equations
opam package depends optionally oncoq-hott
, so ifcoq-hott
is installed before it,coq-equations
will automatically install theHoTT
library variant in addition to the standard one. - New attribute
#[tactic=tac]
to set locally the default tactic to solve remaining holes. The goals on which the tactic applies are now always of the formΓ |- τ
where Γ is the context where the hole was introduced and τ the expected type, even when using theObligation
machinery to solve them, resulting in a possible incompatibility if the obligation tactic treated the context differently than the conclusion. By default, theprogram_simpl
tactic performs asimpl
call before introducing the hypotheses, so you might need to add asimpl in *
to your tactics. - New attributes
#[derive(equations=yes,no, eliminator=yes|no)]
can be used in place of the(noeqns, noind)
flags which are deprecated.
∗ #329: improved strengthening avoiding to abstract over recursive definitions which would not pass the guardness checker. This can simplify the produced terms, avoiding unnecessary "commutative cuts".
∗ #321: warn rather than error when using Equations? and no subgoals are left. This will leave a proof state with no subgoals, that must be closed using a Qed
or Defined
(similarly to Coq's #[refine] Instance
command).
∗ #372, #194: funelim
applied to a partial application failing
∗ #354: support for building values in SProp
∗ #353: name capture problem in presence of modules
∗ #335: provide an alias Equations Derive to not conflict with QuickChick's Derive
∗ #325: properly inline all Equations helper constants during Extraction
Files
mattam82/Coq-Equations-v1.3-8.13beta.zip
Files
(1.2 MB)
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Additional details
Related works
- Is supplement to
- https://github.com/mattam82/Coq-Equations/tree/v1.3-8.13beta (URL)