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README.md

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This repo is an implementation of Freer Monads

Build

  1. Make sure you have the nix package manager installed.

  2. (Optional) If your are on MacOS, you can use cachix and use our pre-built cache. For this, all you have to do is to run

$ nix-env -iA cachix -f https://github.com/NixOS/nixpkgs/tarball/889c72032f8595fcd7542c6032c208f6b8033db6 $ cachix use refine-free

  1. Build

$ nix-build

In order to run Proof General with the correct nix configuration we still need a couple of extra steps:

  1. Install (Emacs-direnv)[https://github.com/wbolster/emacs-direnv]

M-x package-install RET direnv RET

  1. Add the this script to your path

  2. Add the following configuration to your .emacs file

(use-package direnv
  :demand t
  :config
  (direnv-mode)
  (eval-after-load 'flycheck
    '(setq flycheck-executable-find
           (lambda (cmd)
             (direnv-update-environment default-directory)
             (executable-find cmd))))
  :hook
  (coq-mode . direnv-update-environment))
  1. Run nix-shell

$ nix-shell

  1. Now you can finally Proof General with the correct buffer

$ emacs src/Refine.v

PS.: Remember to always run nix-shell before emacs.