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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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Kyle Miller 1659f3bfe2
fix: .. in patterns should not make use of optparams or autoparams (#5933) 
In patterns, ellipsis should always fill in each remaining argument as
an implicit argument, even if it is an optparam or autoparam. This
prevents examples such as the one in #4555 from failing:
```lean
match e with
| .internal .. => sorry
| .error .. => sorry
```
The `internal` constructor has an optparam (`| internal (id :
InternalExceptionId) (extra : KVMap := {})`).

We may consider having ellipsis suppress optparams and autoparams in
general. We avoid doing so for now since it's possible to opt-out of
them individually (for example with `.internal (extra := _) ..`) but
it's not possible to opt-in, and it is plausible that `..` with
optparams is useful in contexts such as the `refine` tactic. With
patterns however, it is hard to imagine a use case that offsets the
inconvenience of optparams being eagerly supplied.

Closes #4555
2024-11-03 18:40:21 +00:00
.github chore: CI: build 64-bit platforms consistently with GMP 2024-11-01 22:48:49 +11:00
doc chore: cleanup some deprecations in tests (#5834) 2024-10-25 11:11:22 +00:00
images
nix chore: fix Nix update-stage0 (#5290) 2024-09-09 16:27:24 +00:00
releases_drafts chore: release notes for 4.12.0 (#5549) 2024-10-01 04:07:28 +00:00
script feat: compile against Windows SDK headers under Windows (#5753) 2024-10-22 13:00:02 +00:00
src fix: .. in patterns should not make use of optparams or autoparams (#5933) 2024-11-03 18:40:21 +00:00
stage0 chore: update stage0 2024-11-03 17:21:54 +00:00
tests fix: .. in patterns should not make use of optparams or autoparams (#5933) 2024-11-03 18:40:21 +00:00
.gitattributes chore: Do not hide stage0/src/stdlib_flags.h from diffs 2023-09-13 19:29:25 +02:00
.gitignore feat: support Lake for building Lean core oleans (#3886) 2024-06-13 16:18:24 +00:00
.ignore chore: ignore stage0/ (for rg etc.) 2022-03-18 15:28:20 +01:00
CMakeLists.txt feat: import LeanSAT's tactic frontends 2024-08-28 18:14:39 +02:00
CMakePresets.json chore: modernize build instructions (#4032) 2024-05-23 10:55:07 +00:00
CODEOWNERS chore: @hargoniX Std.Sat codeowner, fix Kim's user name (#5765) 2024-10-18 11:13:28 +00:00
CONTRIBUTING.md doc: triage 2024-07-26 18:24:06 +02:00
debug.log feat: lake: Reservoir-related configuration for packages (#4770) 2024-09-02 16:07:08 +00:00
flake.lock feat: ship cadical (#4325) 2024-08-23 09:13:27 +00:00
flake.nix chore: CI: build 64-bit platforms consistently with GMP 2024-11-01 22:48:49 +11:00
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 feat: ship cadical (#4325) 2024-08-23 09:13:27 +00:00
README.md doc: mention build doc source location (#4045) 2024-05-01 22:42:54 +00:00
RELEASES.md chore: fix spelling mistakes (#5599) 2024-10-02 21:32:22 +00:00

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 (documentation source: doc/make/index.md).