# 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 8.8.2 Formal proof management system num 1.4 The legacy Num library for arbitrary-precision integer and rational arithmetic ocaml 4.07.1 The OCaml compiler (virtual package) ocaml-base-compiler 4.07.1 Official release 4.07.1 ocaml-config 1 OCaml Switch Configuration ocamlfind 1.9.5 A library manager for OCaml # opam file: opam-version: "2.0" maintainer: "palmskog@gmail.com" homepage: "https://github.com/coq-community/hydra-battles" dev-repo: "git+https://github.com/coq-community/hydra-battles.git" bug-reports: "https://github.com/coq-community/hydra-battles/issues" license: "MIT" synopsis: "Exploration of some properties of Kirby and Paris' hydra battles, with the help of Coq" description: """ An exploration of some properties of Kirby and Paris' hydra battles, with the help of the Coq Proof assistant. This development includes the study of several representations of ordinal numbers, and a part of the so-called Ketonen and Solovay machinery (combinatorial properties of epsilon0).""" build: ["dune" "build" "-p" name "-j" jobs] depends: [ "dune" {>= "2.5"} "coq" {(>= "8.11" & < "8.14~") | (= "dev")} "coq-equations" {(>= "1.2" & < "1.3~") | (= "dev")} ] tags: [ "category:Mathematics/Combinatorics and Graph Theory" "category:Mathematics/Logic/Foundations" "keyword:Ketonen-Solovay machinery" "keyword:ordinals" "keyword:primitive recursive functions" "logpath:hydras" "date:2021-05-19" ] authors: [ "Pierre Castéran" ] url { src: "https://github.com/coq-community/hydra-battles/archive/v0.4.tar.gz" checksum: "sha256=bba82794e49e03fd82fcee592b2b037ec20669d10e6c47ed8b4f8a7f851756eb" }
true
Dry install with the current Coq version:
opam install -y --show-action coq-hydra-battles.0.4 coq.8.8.2
[NOTE] Package coq is already installed (current version is 8.8.2). The following dependencies couldn't be met: - coq-hydra-battles -> coq >= dev -> 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-hydra-battles.0.4
true
true
No files were installed.
true