package coq-core

You can search for identifiers within the package.

in-package search v0.2.0

The Coq Proof Assistant -- Core Binaries and Tools

Install

Dune Dependency

coq.inria.fr Readme Edit opam file Versions (9)

Authors

T

The Coq development team, INRIA, CNRS, and contributors

Maintainers

T

The Coq development team <coqdev@inria.fr>

Sources

coq-8.19.1.tar.gz

md5=13d2793fc6413aac5168822313e4864e

sha512=ec8379df34ba6e72bcf0218c66fef248b0e4c5c436fb3f2d7dd83a2c5f349dd0874a67484fcf9c0df3e5d5937d7ae2b2a79274725595b4b0065a381f70769b42

doc/coq-core.engine/UnivProblem/index.html

Module `UnivProblem`Source

Constraints for type inference

When doing conversion of universes, not only do we have =/<= constraints but also Lub constraints which correspond to unification of two levels which might not be necessary if unfolding is performed.

UWeak constraints come from irrelevant universes in cumulative polymorphism.

Sourcetype t =

| QEq of Sorts.Quality.t * Sorts.Quality.t
| QLeq of Sorts.Quality.t * Sorts.Quality.t
| ULe of Sorts.t * Sorts.t
| UEq of Sorts.t * Sorts.t
| ULub of Univ.Level.t * Univ.Level.t
| UWeak of Univ.Level.t * Univ.Level.t

Sourceval is_trivial : t -> bool

Sourceval check_eq_level : UGraph.t -> Univ.Level.t -> Univ.Level.t -> bool

Wrapper around the UGraph function to handle Prop

Sourcemodule Set : sig ... end

Sourcetype 'a constraint_function = 'a -> 'a -> Set.t -> Set.t

Sourceval enforce_eq_instances_univs : bool -> UVars.Instance.t constraint_function

Sourceval enforce_eq_qualities : Sorts.Quality.t array constraint_function

Source

val compare_cumulative_instances : 
  Conversion.conv_pb ->
  UVars.Variance.t array ->
  UVars.Instance.t constraint_function

On This Page

Constraints for type inference