Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
6514385bb9
This adds the ability to add the converse direction of a rewrite rule not just in simp arguments `simp [← thm]`, but also as a global attribute ```lean attribute [simp ←] thm ``` This fixes #5828. This can be undone with `attribute [-simp]`, although note that `[-simp]` wins and cannot be undone at the moment (#5868). Like `simp [← thm]` (see #4290), this will do an implicit `attribute [-simp] thm` if the other direction is already defined. |
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| 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 | ||
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