Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
465ed8af46
* Now `getPathToBaseStructure?` can navigate to all parent structures, not just through subobjects. * Adds a "resolution order" for methods. This is the order that generalized field notation visits parent structures when trying to resolve names. The algorithm to compute a resolution order is the commonly used C3 (used for instance by Python). By default we use a relaxed version of the algorithm that tolerates inconsistencies. Using `set_option structure.strictResolutionOrder true` makes inconsistent parent orderings into warnings. * This makes generalized field notation be able to resolve names for all parent structures, not just those that are embedded as subobjects. Closes #3467. (And addresses side note in #1881.) * Modifies `getAllParentStructures` to return *all* parents. This improves dot completion in the editor. |
||
|---|---|---|
| .github | ||
| doc | ||
| images | ||
| nix | ||
| releases_drafts | ||
| script | ||
| src | ||
| stage0 | ||
| tests | ||
| .gitattributes | ||
| .gitignore | ||
| .ignore | ||
| CMakeLists.txt | ||
| CMakePresets.json | ||
| CODEOWNERS | ||
| CONTRIBUTING.md | ||
| debug.log | ||
| flake.lock | ||
| flake.nix | ||
| lean-toolchain | ||
| lean.code-workspace | ||
| LICENSE | ||
| LICENSES | ||
| README.md | ||
| RELEASES.md | ||
This is the repository for Lean 4.
About
- Quickstart
- Homepage
- Theorem Proving Tutorial
- Functional Programming in Lean
- Manual
- Release notes starting at v4.0.0-m3
- Examples
- External Contribution Guidelines
- FAQ
Installation
See Setting Up Lean.
Contributing
Please read our Contribution Guidelines first.
Building from Source
See Building Lean (documentation source: doc/make/index.md).