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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 3bd2a7419d
fix: have app unexpanders be considered before field notation (#4071) 
On
[Zulip](https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/Notation.20in.20namespace.20not.20showing.20in.20pp/near/437016468),
Peter Nelson reported that notations that could be pretty printed with
generalized field notation did not pretty print using the intended
notation.

This PR makes it so that app unexpanders are considered before
generalized field notation. The complexity before was that we wanted to
do parent projection collapse, and since we did the collapse before
pretty printing that argument, it meant it wasn't possible to do app
unexpanders when there was a field notation candidate. The new solution
is to collapse parent projections only when actually considering field
notation, which can be done because we can safely strip off projection
syntax in an expression-directed way.
2024-05-05 22:44:01 +00:00
.github chore: CI: disable large runner again 2024-05-02 17:46:29 +02:00
doc doc: layout algorithm (#3915) 2024-05-03 11:47:23 +00:00
images chore(CMakeLists.txt): move Lean logo to make sure we can test leanemacs without installing Lean 2015-01-31 17:38:49 -08:00
nix chore: add ./script/rebase-stage0.sh (#3984) 2024-05-02 12:26:25 +00:00
script chore: add ./script/rebase-stage0.sh (#3984) 2024-05-02 12:26:25 +00:00
src fix: have app unexpanders be considered before field notation (#4071) 2024-05-05 22:44:01 +00:00
stage0 chore: update stage0 2024-04-29 05:46:11 +02:00
tests fix: have app unexpanders be considered before field notation (#4071) 2024-05-05 22:44:01 +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 chore: update-stage0-commit cmake target (#3692) 2024-04-04 13:35:53 +00:00
CODEOWNERS chore: update code owners 2024-04-24 10:16:16 +02:00
CONTRIBUTING.md doc: Adjust contributor's docs to squash merging (#2927) 2023-11-21 10:13:43 +00:00
flake.lock chore: test results as job summary (#3715) 2024-03-27 10:14:33 +00:00
flake.nix chore: replace shell.nix with a devShell in flake.nix (#3717) 2024-03-21 13:24:01 +00:00
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: mention build doc source location (#4045) 2024-05-01 22:42:54 +00:00
RELEASES.md chore: begin development cycle for v4.9.0 (#4058) 2024-05-03 03:20:29 +00:00

README.md

This is the repository for Lean 4.

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Building from Source

See Building Lean (documentation source: doc/make/index.md).