# 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 8.5.2 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
# 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" {>= "8.13" & < "8.15~"}
"coq-equations" {>= "1.2" & < "1.4~"}
]
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:2021-10-15"
]
authors: [
"Pierre Castéran"
"Évelyne Contejean"
"Jeremy Damour"
"Russell O'Connor"
"Karl Palmskog"
"Clément Pit-Claudel"
"Théo Zimmermann"
]
url {
src: "https://github.com/coq-community/hydra-battles/archive/v0.5.tar.gz"
checksum: "sha512=7edd74fa408b996ebe7c4748046fda522f24a4b532c58b5ad55edeaa4bbd137ba9f21b0b6c1f824d4e7c50f04fb6afe488dfbcd24702e8fe44eb75b780610458"
}
trueDry install with the current Coq version:
opam install -y --show-action coq-hydra-battles.0.5 coq.8.5.2[NOTE] Package coq is already installed (current version is 8.5.2).
The following dependencies couldn't be met:
- coq-hydra-battles -> coq >= 8.13 -> ocaml >= 4.05.0
base of this switch (use `--unlock-base' to force)
- coq-hydra-battles -> coq >= 8.13 -> 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.0.5truetrueNo files were installed.
true