# Packages matching: installed
# Name # Installed # Synopsis
base-bigarray base
base-threads base
base-unix base
conf-findutils 1 Virtual package relying on findutils
coq 8.12.2 Formal proof management system
num 1.4 The legacy Num library for arbitrary-precision integer and rational arithmetic
ocaml 4.09.1 The OCaml compiler (virtual package)
ocaml-base-compiler 4.09.1 Official release 4.09.1
ocaml-config 1 OCaml Switch Configuration
ocamlfind 1.9.3 A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "matej.kosik@inria.fr"
homepage: "https://github.com/coq-contribs/paradoxes"
license: "LGPL 2"
build: [make "-j%{jobs}%"]
install: [make "install"]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/Paradoxes"]
depends: [
"ocaml"
"coq" {>= "8.5" & < "8.6~"}
]
tags: [ "keyword:reynolds paradox" "keyword:burali forti paradox" "keyword:diaconescu paradox" "keyword:set theory" "keyword:system u" "keyword:inconsistency" "keyword:hurkens paradox" "category:Mathematics/Logic/Foundations" ]
authors: [ "Bruno Barras <>" "Benjamin Werner <>" "Hugo Herbelin <>" "Thierry Coquand <>" ]
bug-reports: "https://github.com/coq-contribs/paradoxes/issues"
dev-repo: "git+https://github.com/coq-contribs/paradoxes.git"
synopsis: "Paradoxes in Set Theory and Type Theory"
description: """
A formalisation of Burali-Forti paradox in system U (the
existence of an ordinal of ordinals is inconsistent), of Diaconescu
paradox (axiom of choice implies excluded-middle), of Reynolds paradox
(there is no set-theoretic model of system F) and Hurkens paradox in
system U (adapted by H. Geuvers to show the inconsistency of
Excluded-Middle in impredicative-Set Calculus of Inductive Constructions)."""
flags: light-uninstall
url {
src: "https://github.com/coq-contribs/paradoxes/archive/v8.5.0.tar.gz"
checksum: "md5=09cae5a778b3cee470f9dc71b5baface"
}
trueDry install with the current Coq version:
opam install -y --show-action coq-paradoxes.8.5.0 coq.8.12.2[NOTE] Package coq is already installed (current version is 8.12.2).
The following dependencies couldn't be met:
- coq-paradoxes -> coq < 8.6~ -> ocaml < 4.06.0
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-paradoxes.8.5.0truetrueNo files were installed.
true