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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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Austin Letson 83369f3d9f
fix: update System.FilePath.parent to handle edge cases for absolute paths (#3645) 
System.FilePath.parent did not return the correct parent path in the
case of absolute file paths

Example of previous behavior
```
(FilePath.mk "/foo").parent -> some (FilePath.mk "")

(System.FilePath.mk "/").parent -> some (FilePath.mk "")
```

The new behavior is based on rust's std::path::Path::parent function (as
previously described in comment in System.FilePath)

Example of updated behavior
```
(System.FilePath.mk "/foo").parent -> some (FilePath.mk "/")

(System.FilePath.mk "/").parent -> none
```

Behavior for relative file paths is unchanged

Closes #3618
2024-03-26 05:09:44 +00:00
.github chore: replace shell.nix with a devShell in flake.nix (#3717) 2024-03-21 13:24:01 +00:00
doc chore: replace shell.nix with a devShell in flake.nix (#3717) 2024-03-21 13:24:01 +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: update System.FilePath.parent to handle edge cases for absolute paths (#3645) 2024-03-26 05:09:44 +00:00
stage0 chore: update stage0 2024-03-22 18:09:36 +00:00
tests fix: update System.FilePath.parent to handle edge cases for absolute paths (#3645) 2024-03-26 05:09:44 +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
flake.lock chore: replace shell.nix with a devShell in flake.nix (#3717) 2024-03-21 13:24:01 +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: remove nightly and other outdated references (#3027) 2024-01-25 13:53:36 +00:00
RELEASES.md feat: flatten parent projections when pretty printing structure instance notation (#3749) 2024-03-23 09:20:52 +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.