* (2019-10-05 07:30:19 UTC)*

# 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 7.10 Preprocessor-pretty-printer of OCaml conf-m4 1 Virtual package relying on m4 coq 8.8.1 Formal proof management system. num 0 The Num library for arbitrary-precision integer and rational arithmetic ocaml 4.05.0 The OCaml compiler (virtual package) ocaml-base-compiler 4.05.0 Official 4.05.0 release ocaml-config 1 OCaml Switch Configuration ocamlfind 1.8.1 A library manager for OCaml # opam file: opam-version: "2.0" maintainer: "matej.kosik@inria.fr" homepage: "https://github.com/coq-contribs/ipc" license: "Proprietary" build: [make "-j%{jobs}%"] install: [make "install"] remove: ["rm" "-R" "%{lib}%/coq/user-contrib/IPC"] depends: [ "ocaml" "coq" {>= "8.5" & < "8.6~"} ] tags: [ "keyword:intuitionistic logic" "keyword:proof search" "keyword:proof as programs" "keyword:correct by construction" "keyword:program verification" "keyword:program extraction" "category:Mathematics/Logic/Foundations" "category:Computer Science/Decision Procedures and Certified Algorithms/Decision procedures" "category:Miscellaneous/Extracted Programs/Decision procedures" ] authors: [ "Klaus Weich <>" ] bug-reports: "https://github.com/coq-contribs/ipc/issues" dev-repo: "git+https://github.com/coq-contribs/ipc.git" synopsis: "Intuitionistic Propositional Checker" description: """ This development treats proof search in intuitionistic propositional logic, a fragment of any constructive type theory. We present new and more efficient decision procedures for intuitionistic propositional logic. They themselves are given by (non-formal) constructive proofs. We take one of them to demonstrate that constructive type theory can be used in practice to develop a real, efficient, but error-free proof searcher. This was done by formally proving the decidability of intuitionistic propositional logic in Coq; the proof searcher was automatically extracted.""" flags: light-uninstall url { src: "https://github.com/coq-contribs/ipc/archive/v8.5.0.tar.gz" checksum: "md5=48a096b1a0ea31d841c6f98c53752f42" }

- Command
`true`

- Return code
- 0

Dry install with the current Coq version:

- Command
`opam install -y --show-action coq-ipc.8.5.0 coq.8.8.1`

- Return code
- 5120
- Output
[NOTE] Package coq is already installed (current version is 8.8.1). The following dependencies couldn't be met: - coq-ipc -> coq < 8.6~ -> ocaml < 4.03.0 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-ipc.8.5.0`

- Return code
- 0

- Command
`true`

- Return code
- 0
- Duration
- 0 s

- Command
`true`

- Return code
- 0
- Duration
- 0 s

No files were installed.

- Command
`true`

- Return code
- 0
- Missing removes
- none
- Wrong removes
- none