Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
6ea7869c6a
The `infix` declaration was generating a delaborator, but it is producing the invalid term ``` ConstantFunction.f myFun 3 <|> fun _ => ConstantFunction.f myFun 4 ``` It is invalid because the `macro_rules` for `<|>` is based on `binop_lazy%` which introduces the `fun _ =>` for us. I tried to use ``` notation:20 a:21 " <|> " b:20 => HOrElse.hOrElse a fun _ : Unit => b ``` but the delaborator generator does not work for this case. |
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| lean4-mode | ||
| nix | ||
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| src | ||
| stage0 | ||
| tests | ||
| tmp | ||
| .gitattributes | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CONTRIBUTING.md | ||
| default.nix | ||
| flake.lock | ||
| flake.nix | ||
| LICENSE | ||
| README.md | ||
| shell.nix | ||
This is the repository for Lean 4, which is currently being released as milestone releases towards a first stable release. Lean 3 is still the latest stable release.
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Building from Source
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