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Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Leonardo de Moura 57ed29e814 revert: panic! changes 
@Kha I am reverting this change for now.
I understand that the "default-value" approach is bad for debugging,
and it does not produce good error messages, but at least the frontend
will not "panic" when users add a bad macro.

After we switch to the new frontend, we can have a monadic `getArg`
and `getArgs` in the Elab and Macro monads which produces an
"unexpected syntax" error message. I say we wait for the new frontend
because we will be able to write `(<- s.getArg)` inside of
expressions.
2020-08-19 09:57:58 -07:00
.github chore: de-Nix-ify macOS binary 2020-06-10 21:30:38 +02:00
doc chore: add stage 1.5 (yes, really) 2020-08-12 09:15:59 -07:00
images
lean4-mode chore: add new_frontend 2020-06-17 21:28:03 -07:00
nix chore: update nixpkgs, changing back to LLVM 10 2020-07-08 12:14:49 +02:00
script chore: update CI 2020-06-10 21:30:38 +02:00
src revert: panic! changes 2020-08-19 09:57:58 -07:00
stage0 chore: update stage0 2020-08-19 09:56:23 -07:00
tests feat: adjust semantics to new syntax 2020-08-19 09:56:23 -07:00
tmp feat: add caseValues tactic 2020-08-06 15:37:00 -07:00
.clang-format
.codecov.yml fix(.codecov.yml): do not fail github ci if coverage drops by 0.01% 2017-06-25 10:35:02 +02:00
.gitattributes chore: restore marking stage0/ as binary files, which we lost at some point 2020-08-14 11:12:13 +02:00
.gitignore chore: move bin/ and .oleans into build directory 2020-05-14 14:47:54 +02:00
CMakeLists.txt chore: add stage 1.5 (yes, really) 2020-08-12 09:15:59 -07:00
default.nix chore: add separate "Linux release" CI job using Nix channel with older glibc for compatibility 2020-06-10 21:30:38 +02:00
LICENSE
README.md chore(README): update 2019-04-24 11:40:46 -07:00
shell.nix chore: update temci 2020-07-21 18:30:22 +02:00

README.md

We are currently developing Lean 4. Lean 3 is still the latest official release. This repository contains work in progress.

Important. Unless you are one of our collaborators

  • We strongly suggest you use Lean 3.
  • Pull requests are not welcome.
  • New issues are not welcome, and will be closed without any feedback.