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propcalc 8.9.0 Not compatible ๐Ÿ‘ผ

Context

# Packages matching: installed
# Name              # Installed # Synopsis
base-bigarray       base
base-num            base        Num library 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                 8.5.1       Formal proof management system
num                 0           The Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.04.2      The OCaml compiler (virtual package)
ocaml-base-compiler 4.04.2      Official 4.04.2 release
ocaml-config        1           OCaml Switch Configuration
# opam file:
opam-version: "2.0"
maintainer: "Hugo.Herbelin@inria.fr"
homepage: "http://arxiv.org/abs/1503.08744"
license: "BSD"
build: [make "-j%{jobs}%"]
install: [make "install"]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/PropCalc"]
depends: [
  "ocaml"
  "coq" {>= "8.9" & < "8.10~"}
]
tags: [
  "keyword: propositional calculus"
  "keyword: classical logic"
  "keyword: completeness"
  "keyword: natural deduction"
  "keyword: sequent calculus"
  "keyword: cut elimination"
  "category: Mathematics/Logic/Foundations"
]
authors: [
  "Floris van Doorn <fpvdoorn@gmail.com> [http://www.contrib.andrew.cmu.edu/~fpv/]"
]
bug-reports: "https://github.com/coq-contribs/propcalc/issues"
dev-repo: "git+https://github.com/coq-contribs/propcalc.git"
synopsis: "Propositional Calculus"
description: """
Formalization of basic theorems about classical propositional logic. The main theorems are (1) the soundness and completeness of natural deduction calculus, (2) the equivalence between natural deduction calculus, Hilbert systems and sequent calculus and (3) cut elimination for sequent calculus."""
flags: light-uninstall
url {
  src: "https://github.com/coq-contribs/propcalc/archive/v8.9.0.tar.gz"
  checksum: "md5=026cadcf7d43c7ed9212266633005efd"
}

Lint

Command
true
Return code
0

Dry install ๐Ÿœ๏ธ

Dry install with the current Coq version:

Command
opam install -y --show-action coq-propcalc.8.9.0 coq.8.5.1
Return code
5120
Output
[NOTE] Package coq is already installed (current version is 8.5.1).
The following dependencies couldn't be met:
  - coq-propcalc -> coq >= 8.9 -> ocaml >= 4.05.0
      base of this switch (use `--unlock-base' to force)
  - coq-propcalc -> coq >= 8.9 -> coq-core -> 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:

Command
opam remove -y coq; opam install -y --show-action --unlock-base coq-propcalc.8.9.0
Return code
0

Install dependencies

Command
true
Return code
0
Duration
0 s

Install ๐Ÿš€

Command
true
Return code
0
Duration
0 s

Installation size

No files were installed.

Uninstall ๐Ÿงน

Command
true
Return code
0
Missing removes
none
Wrong removes
none