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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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Joachim Breitner ea20911a85
feat: Better error location in structural recursion (#2819) 
previously, only the WellFounded code was making use of the error
location in the RecApp-metadata. We can do the same for structural
recursion. This way,
```
def f (n : Nat) : Nat :=
  match n with
  | 0 => 0
  | n + 1 => f (n + 1)
```
will show the error with squiggly lines under `f (n + 1)`, and not at
`def f`.
2023-11-05 22:24:17 +01:00
.github chore: still fixing CI (#2817) 2023-11-04 06:32:05 +00:00
.vscode
doc doc: fix a link in development documentation #2780 2023-10-30 10:58:25 +11:00
images
nix fix: If src is a dir, assume the lean file has the full path (#2465) 2023-08-28 14:45:45 +02:00
script feat: use nightly-testing-YYYY-MM-DD branches on Mathlib for testing PRs, and be more conservative about launching Mathlib CI (#2798) 2023-11-02 12:07:06 +11:00
src feat: Better error location in structural recursion (#2819) 2023-11-05 22:24:17 +01:00
stage0 chore: update stage0 2023-11-02 23:21:47 +01:00
tests feat: Better error location in structural recursion (#2819) 2023-11-05 22:24:17 +01:00
.gitattributes chore: Do not hide stage0/src/stdlib_flags.h from diffs 2023-09-13 19:29:25 +02:00
.gitignore chore: .gitignore fixes 2023-08-02 04:03:56 -04:00
.ignore chore: ignore stage0/ (for rg etc.) 2022-03-18 15:28:20 +01:00
CMakeLists.txt feat: Web Assembly Build (#2599) 2023-10-04 09:04:20 +02:00
CONTRIBUTING.md doc: Update contribution guides (#2624) 2023-10-25 13:05:55 +11:00
default.nix
flake.lock chore: Nix bump to LLVM 15 2023-07-28 10:56:54 +02:00
flake.nix chore: Nix: use strings instead of URL literals (#2172) 2023-03-28 10:10:24 +02:00
LICENSE chore: remove LICENSE header that confused GitHub 2021-11-18 09:42:35 +01:00
LICENSES chore: add GMP license for now 2021-11-18 09:42:35 +01:00
README.md doc: Update contribution guides (#2624) 2023-10-25 13:05:55 +11:00
RELEASES.md chore: change simp default to decide := false (#2722) 2023-11-02 10:06:38 +11:00
shell.nix chore: Nix bump to LLVM 15 2023-07-28 10:56:54 +02:00

README.md

This is the repository for Lean 4.

We provide nightly releases and have just begun regular stable point releases.

About

Installation

See Setting Up Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.