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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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Arthur Adjedj bf8b66c6a5
fix: ignore unused alternatives in Ord derive handler (#3725) 
Closes #3706

This derive handler's implementation is very similar to `BEq`'s, which
already ignores unused alternative so as to work correctly on indexed
inductive types. This PR simply implements the same solution as the one
present in
[`BEq.lean`](2c15cdda04/src/Lean/Elab/Deriving/BEq.lean (L94)).

After some tests, it doesn't seem like any other derive handler present
in Core suffers from the same issue (though some handlers don't work on
indexed inductives for other reasons).
2024-03-21 10:29:22 +00:00
.github chore: in combined CI, check for required Std tag, then Mathlib (#3702) 2024-03-17 01:29:47 +00:00
doc feat: thread initialization for reverse FFI (#3632) 2024-03-07 17:02:47 +00:00
images
nix fix: Build failure of nix build . on macOS (#3712) 2024-03-18 21:39:39 +00:00
script fix: C++ exceptions across shared libraries on Linux (#3500) 2024-02-26 10:35:11 +00:00
src fix: ignore unused alternatives in Ord derive handler (#3725) 2024-03-21 10:29:22 +00:00
stage0 chore: update stage0 2024-03-20 22:45:34 +00:00
tests fix: ignore unused alternatives in Ord derive handler (#3725) 2024-03-21 10:29:22 +00:00
.gitattributes chore: Do not hide stage0/src/stdlib_flags.h from diffs 2023-09-13 19:29:25 +02:00
.gitignore chore: update tests to account for .lake 2023-11-13 20:31:24 -05:00
.ignore chore: ignore stage0/ (for rg etc.) 2022-03-18 15:28:20 +01:00
CMakeLists.txt feat: embed and check githash in .olean (#2766) 2023-11-27 10:24:43 +00:00
CODEOWNERS feat: snapshot trees and language processors (#3014) 2024-03-14 13:40:08 +00:00
CONTRIBUTING.md doc: Adjust contributor's docs to squash merging (#2927) 2023-11-21 10:13:43 +00:00
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
lean-toolchain doc: VS Code dev setup (#2961) 2023-11-30 08:35:03 +00:00
lean.code-workspace chore: add the lean4 extension to the vscode workspace (#3059) 2023-12-14 08:58:21 +00:00
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: remove nightly and other outdated references (#3027) 2024-01-25 13:53:36 +00:00
RELEASES.md feat: infer termination arguments like xs.size - i (#3666) 2024-03-16 12:27:35 +00:00
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.

About

Installation

See Setting Up Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.