# 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 camlp4 4.03+1 Camlp4 is a system for writing extensible parsers for programming languages conf-findutils 1 Virtual package relying on findutils conf-which 1 Virtual package relying on which coq 8.5.0~camlp4 Formal proof management system num 0 The Num library for arbitrary-precision integer and rational arithmetic ocaml 4.03.0 The OCaml compiler (virtual package) ocaml-base-compiler 4.03.0 Official 4.03.0 release ocaml-config 1 OCaml Switch Configuration ocamlbuild 0.14.2 OCamlbuild is a build system with builtin rules to easily build most OCaml projects # opam file: opam-version: "2.0" maintainer: "Hugo.Herbelin@inria.fr" homepage: "https://github.com/coq-contribs/higman-nw" license: "LGPL 2.1" build: [make "-j%{jobs}%"] install: [make "install"] remove: ["rm" "-R" "%{lib}%/coq/user-contrib/HigmanNW"] depends: [ "ocaml" "coq" {>= "8.9" & < "8.10~"} ] tags: [ "keyword: A-translation" "keyword: Higman's lemma" "keyword: impredicativity" "keyword: System F" "keyword: extraction" "category: Mathematics/Logic" "category: Mathematics/Combinatorics and Graph Theory" "category: Miscellaneous/Extracted Programs/Combinatorics" ] authors: [ "Hugo Herbelin" ] bug-reports: "https://github.com/coq-contribs/higman-nw/issues" dev-repo: "git+https://github.com/coq-contribs/higman-nw.git" synopsis: "A program from an A-translated impredicative proof of Higman's Lemma" description: """ The file Higman.v formalizes an A-translated version of Nash-Williams impredicative and classical proof of Higman's lemma for a two-letter alphabet. A constructive and impredicative program can be extracted from the proof.""" flags: light-uninstall url { src: "https://github.com/coq-contribs/higman-nw/archive/v8.9.0.tar.gz" checksum: "md5=2e1bab3c386453e0eb8679fed82711a1" }
true
Dry install with the current Coq version:
opam install -y --show-action coq-higman-nw.8.9.0 coq.8.5.0~camlp4
[NOTE] Package coq is already installed (current version is 8.5.0~camlp4). The following dependencies couldn't be met: - coq-higman-nw -> coq >= 8.9 -> ocaml >= 4.05.0 base of this switch (use `--unlock-base' to force) - coq-higman-nw -> coq >= 8.9 -> coq-core -> ocaml >= 4.09.0 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-higman-nw.8.9.0
true
true
No files were installed.
true