Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Leonardo de Moura dc9626ceab feat: try to improve weird error message
@Kha Before this commit, we were producing the error "expected command" at the `let` token
```lean
check id let x := 1; x
```
The new error is "expected command, but found term; this error may be
due to parsing precedence levels, consider parenthesizing the term".

The example above looks artificial, but it will happen all the time as
users start to define their own notation.
2020-09-21 18:29:01 -07:00
.github chore: remove hanging stdlib bench test from CI 2020-08-26 11:34:43 +02:00
doc doc: wording 2020-08-25 16:12:19 +02:00
images
lean4-mode chore: add where to list of keywords 2020-09-21 08:27:29 -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 feat: try to improve weird error message 2020-09-21 18:29:01 -07:00
stage0 chore: update stage0 2020-09-21 17:13:42 -07:00
tests feat: try to improve weird error message 2020-09-21 18:29:01 -07:00
tmp feat: add caseValues tactic 2020-08-06 15:37:00 -07:00
.clang-format feat(library/vm/process): add basic process support 2017-03-28 18:08:06 -07:00
.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

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.