# Packages matching: installed # Name # Installed # Synopsis base-bigarray base base-threads base base-unix base camlp5 7.14 Preprocessor-pretty-printer of OCaml conf-findutils 1 Virtual package relying on findutils conf-perl 2 Virtual package relying on perl coq 8.7.1+1 Formal proof management system num 1.4 The legacy Num library for arbitrary-precision integer and rational arithmetic ocaml 4.09.1 The OCaml compiler (virtual package) ocaml-base-compiler 4.09.1 Official release 4.09.1 ocaml-config 1 OCaml Switch Configuration ocamlfind 1.9.3 A library manager for OCaml # opam file: opam-version: "2.0" maintainer: "Mathematical Components <mathcomp-dev@sympa.inria.fr>" homepage: "https://math-comp.github.io" bug-reports: "Mathematical Components <mathcomp-dev@sympa.inria.fr>" dev-repo: "git+https://github.com/math-comp/fourcolor" license: "CECILL-B" build: [ make "-j" "%{jobs}%" ] install: [ make "install" ] depends: [ "coq" { < "8.14" } "coq-mathcomp-algebra" { >= "1.12.0" & < "1.13" } ] tags: [ "keyword:Four color theorem" "keyword:small scale reflection" "keyword:mathematical components" ] authors: [ "Georges Gonthier" ] synopsis: "Mechanization of the Four Color Theorem" description: """ Proof of the Four Color Theorem This library contains a formalized proof of the Four Color Theorem, along with the theories needed to support stating and then proving the Theorem. This includes an axiomatization of the setoid of classical real numbers, basic plane topology definitions, and a theory of combinatorial hypermaps. """ url { src: "https://github.com/math-comp/fourcolor/archive/v1.2.3.tar.gz" checksum: "sha256=09e4e03fa5d17306f901d3bfb9805b91032ea70d1cd3ac24e0b897237048c111" }
true
Dry install with the current Coq version:
opam install -y --show-action coq-fourcolor.1.2.3 coq.8.7.1+1
[NOTE] Package coq is already installed (current version is 8.7.1+1). The following dependencies couldn't be met: - coq-fourcolor -> coq-mathcomp-algebra >= 1.12.0 -> coq-mathcomp-fingroup >= 1.12.0 -> coq-mathcomp-ssreflect >= 1.12.0 -> coq >= 8.10 Your request can't be satisfied: - No available version of coq satisfies the constraints No solution found, exiting
Dry install without Coq/switch base, to test if the problem was incompatibility with the current Coq/OCaml version:
opam remove -y coq; opam install -y --show-action --unlock-base coq-fourcolor.1.2.3
true
true
No files were installed.
true