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-8.18.0.tar.gz

md5=8d852367b54f095d9fbabd000304d450

sha512=46922d5f2eb6802a148a52fd3e7f0be8370c93e7bc33cee05cf4a2044290845b10ccddbaa306f29c808e7c5019700763e37e45ff6deb507b874a4348010fed50

doc/coq-core.kernel/Univ/Variance/index.html

Module `Univ.Variance`Source

Sourcetype t =

| Irrelevant
| Covariant
| Invariant

A universe position in the instance given to a cumulative inductive can be the following. Note there is no Contravariant case because forall x : A, B <= forall x : A', B' requires A = A' as opposed to A' <= A.

Sourceval check_subtype : t -> t -> bool

check_subtype x y holds if variance y is also an instance of x

Sourceval sup : t -> t -> t

Sourceval pr : t -> Pp.t

Sourceval equal : t -> t -> bool