# 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 conf-findutils 1 Virtual package relying on findutils coq 8.12.1 Formal proof management system num 0 The Num library for arbitrary-precision integer and rational arithmetic ocaml 4.05.0 The OCaml compiler (virtual package) ocaml-base-compiler 4.05.0 Official 4.05.0 release ocaml-config 1 OCaml Switch Configuration ocamlfind 1.9.6 A library manager for OCaml # opam file: opam-version: "2.0" maintainer: "Hugo.Herbelin@inria.fr" homepage: "https://github.com/coq-contribs/area-method" license: "Unknown" build: [make "-j%{jobs}%"] install: [make "install"] remove: ["rm" "-R" "%{lib}%/coq/user-contrib/AreaMethod"] depends: [ "ocaml" "coq" {>= "8.8" & < "8.9~"} ] tags: [ "keyword: geometry" "keyword: Chou Gao Zhang area method" "keyword: decision procedure" "keyword: automatic theorem proving" "date: 2004-2010" ] authors: [ "Julien Narboux" ] bug-reports: "https://github.com/coq-contribs/area-method/issues" dev-repo: "git+https://github.com/coq-contribs/area-method.git" synopsis: "The Chou, Gao and Zhang area method" description: """ This contribution is the implementation of the Chou, Gao and Zhang's area method decision procedure for euclidean plane geometry. This development contains a partial formalization of the book "Machine Proofs in Geometry, Automated Production of Readable Proofs for Geometry Theorems" by Chou, Gao and Zhang. The examples shown automatically (there are more than 100 examples) includes the Ceva, Desargues, Menelaus, Pascal, Centroïd, Pappus, Gauss line, Euler line, Napoleon theorems. Changelog 2.1 : remove some not needed assumptions in some elimination lemmas (2010) 2.0 : extension implementation to Euclidean geometry (2009-2010) 1.0 : first implementation for affine geometry (2004)""" flags: light-uninstall url { src: "https://github.com/coq-contribs/area-method/archive/v8.8.0.tar.gz" checksum: "md5=fb219476333f4cd535f9ac5a14852175" }
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Dry install with the current Coq version:
opam install -y --show-action coq-area-method.8.8.0 coq.8.12.1
[NOTE] Package coq is already installed (current version is 8.12.1). The following dependencies couldn't be met: - coq-area-method -> coq < 8.9~ -> ocaml < 4.03.0 base of this switch (use `--unlock-base' to force) 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-area-method.8.8.0
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true
No files were installed.
true