# Packages matching: installed
# Name # Installed # Synopsis
base-bigarray base
base-domains base
base-nnp base Naked pointers prohibited in the OCaml heap
base-threads base
base-unix base
conf-gmp 4 Virtual package relying on a GMP lib system installation
coq dev The Coq Proof Assistant
coq-core dev The Coq Proof Assistant -- Core Binaries and Tools
coq-stdlib dev The Coq Proof Assistant -- Standard Library
coqide-server dev The Coq Proof Assistant, XML protocol server
dune 3.12.2 Fast, portable, and opinionated build system
ocaml 5.0.0 The OCaml compiler (virtual package)
ocaml-base-compiler 5.0.0 Official release 5.0.0
ocaml-config 3 OCaml Switch Configuration
ocaml-options-vanilla 1 Ensure that OCaml is compiled with no special options enabled
ocamlfind 1.9.6 A library manager for OCaml
zarith 1.13 Implements arithmetic and logical operations over arbitrary-precision integers
# 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" {>= "8.6" & < "8.7~"}
]
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/v8.6.0.tar.gz"
checksum: "md5=ec0619a93ffc127bb0c6cdf2423c52b2"
}
trueDry install with the current Coq version:
opam install -y --show-action coq-higman-nw.8.6.0 coq.dev[NOTE] Package coq is already installed (current version is dev).
[ERROR] Package conflict!
* No agreement on the version of coq:
- coq >= dev
- coq-higman-nw = 8.6.0 -> coq < 8.7~
* No agreement on the version of ocaml:
- (invariant) -> ocaml-base-compiler = 5.0.0 -> ocaml = 5.0.0
- coq-higman-nw = 8.6.0 -> coq < 8.7~ -> ocaml < 4.05.0
You can temporarily relax the switch invariant with `--update-invariant'
* No agreement on the version of ocaml-base-compiler:
- (invariant) -> ocaml-base-compiler = 5.0.0
- coq-higman-nw = 8.6.0 -> coq < 8.7~ -> ocaml < 4.05.0 -> ocaml-base-compiler = 3.08.1
* Missing dependency:
- coq-higman-nw = 8.6.0 -> coq < 8.7~ -> ocaml < 4.05.0 -> ocaml-variants -> ocaml-beta
unmet availability conditions: 'enable-ocaml-beta-repository'
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.8.6.0truetrueNo files were installed.
true