# Packages matching: installed
# Name # Installed # Synopsis
base-bigarray base
base-num base Num library distributed with the OCaml compiler
base-ocamlbuild base OCamlbuild binary and libraries 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 8.4.5 Formal proof management system.
num 0 The Num library for arbitrary-precision integer and rational arithmetic
ocaml 4.02.3 The OCaml compiler (virtual package)
ocaml-base-compiler 4.02.3 Official 4.02.3 release
ocaml-config 1 OCaml Switch Configuration
ocamlbuild 0 Build system distributed with the OCaml compiler since OCaml 3.10.0
# 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:ordinal numbers"
"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"
}
trueDry install with the current Coq version:
opam install -y --show-action coq-hydra-battles.0.4 coq.8.4.5[NOTE] Package coq is already installed (current version is 8.4.5).
The following dependencies couldn't be met:
- coq-hydra-battles -> coq >= dev -> ocaml >= 4.05.0
base of this switch (use `--unlock-base' to force)
- coq-hydra-battles -> coq >= dev -> coq-core -> ocaml >= 4.09.0
base of this switch (use `--unlock-base' to force)
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.0.4truetrueNo files were installed.
true