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            <h1>
              fourcolor
              <small>
                1.2.3
                <span class="label label-info">Not compatible 👼</span>
              </small>
            </h1>
            <p>📅 <em><script>document.write(moment("2022-01-29 07:47:20 +0000", "YYYY-MM-DD HH:mm:ss Z").fromNow());</script> (2022-01-29 07:47:20 UTC)</em><p>
            <h2>Context</h2>
            <pre># Packages matching: installed
# Name              # Installed # Synopsis
base-bigarray       base
base-num            base        Num library distributed with the OCaml compiler
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                 8.5.0       Formal proof management system
num                 0           The Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.04.2      The OCaml compiler (virtual package)
ocaml-base-compiler 4.04.2      Official 4.04.2 release
ocaml-config        1           OCaml Switch Configuration
# opam file:
opam-version: &quot;2.0&quot;
maintainer: &quot;Mathematical Components &lt;mathcomp-dev@sympa.inria.fr&gt;&quot;
homepage: &quot;https://math-comp.github.io&quot;
bug-reports: &quot;Mathematical Components &lt;mathcomp-dev@sympa.inria.fr&gt;&quot;
dev-repo: &quot;git+https://github.com/math-comp/fourcolor&quot;
license: &quot;CECILL-B&quot;
build: [ make &quot;-j&quot; &quot;%{jobs}%&quot; ]
install: [ make &quot;install&quot; ]
depends: [
  &quot;coq&quot; { &lt; &quot;8.14&quot; }
  &quot;coq-mathcomp-algebra&quot; { &gt;= &quot;1.12.0&quot; &amp; &lt; &quot;1.13&quot; }
]
tags: [ &quot;keyword:Four color theorem&quot; &quot;keyword:small scale reflection&quot; &quot;keyword:mathematical components&quot; ]
authors: [ &quot;Georges Gonthier&quot; ]
synopsis: &quot;Mechanization of the Four Color Theorem&quot;
description: &quot;&quot;&quot;
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.
&quot;&quot;&quot;
url {
  src: &quot;https://github.com/math-comp/fourcolor/archive/v1.2.3.tar.gz&quot;
  checksum: &quot;sha256=09e4e03fa5d17306f901d3bfb9805b91032ea70d1cd3ac24e0b897237048c111&quot;
}
</pre>
            <h2>Lint</h2>
            <dl class="dl-horizontal">
              <dt>Command</dt>
              <dd><code>true</code></dd>
              <dt>Return code</dt>
              <dd>0</dd>
            </dl>
            <h2>Dry install 🏜️</h2>
            <p>Dry install with the current Coq version:</p>
            <dl class="dl-horizontal">
              <dt>Command</dt>
              <dd><code>opam install -y --show-action coq-fourcolor.1.2.3 coq.8.5.0</code></dd>
              <dt>Return code</dt>
              <dd>5120</dd>
              <dt>Output</dt>
              <dd><pre>[NOTE] Package coq is already installed (current version is 8.5.0).
The following dependencies couldn&#39;t be met:
  - coq-fourcolor -&gt; coq-mathcomp-algebra &gt;= 1.12.0 -&gt; coq-mathcomp-fingroup &gt;= 1.12.0 -&gt; coq-mathcomp-ssreflect &gt;= 1.12.0 -&gt; coq &gt;= 8.10 -&gt; ocaml &gt;= 4.05.0
      base of this switch (use `--unlock-base&#39; to force)
No solution found, exiting
</pre></dd>
            </dl>
            <p>Dry install without Coq/switch base, to test if the problem was incompatibility with the current Coq/OCaml version:</p>
            <dl class="dl-horizontal">
              <dt>Command</dt>
              <dd><code>opam remove -y coq; opam install -y --show-action --unlock-base coq-fourcolor.1.2.3</code></dd>
              <dt>Return code</dt>
              <dd>0</dd>
            </dl>
            <h2>Install dependencies</h2>
            <dl class="dl-horizontal">
              <dt>Command</dt>
              <dd><code>true</code></dd>
              <dt>Return code</dt>
              <dd>0</dd>
              <dt>Duration</dt>
              <dd>0 s</dd>
            </dl>
            <h2>Install 🚀</h2>
            <dl class="dl-horizontal">
              <dt>Command</dt>
              <dd><code>true</code></dd>
              <dt>Return code</dt>
              <dd>0</dd>
              <dt>Duration</dt>
              <dd>0 s</dd>
            </dl>
            <h2>Installation size</h2>
            <p>No files were installed.</p>
            <h2>Uninstall 🧹</h2>
            <dl class="dl-horizontal">
              <dt>Command</dt>
              <dd><code>true</code></dd>
              <dt>Return code</dt>
              <dd>0</dd>
              <dt>Missing removes</dt>
              <dd>
                none
              </dd>
              <dt>Wrong removes</dt>
              <dd>
                none
              </dd>
            </dl>
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