Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
2ef84a1b64
@Kha It seems the new builtin antiquotation notation you added depends on the array literal notation that is not builtin. I got the following error after `update-stage0` ``` Lean/PrettyPrinter/Delaborator/Builtins.lean:455:2: error: elaboration function for '_kind.term._@.Init.Data.Array.Basic._hyg.3391' has not been implemented ``` The base name changed from `_kind.term` to `termKind`. I had to change it because every parser we were defining was in the artificial (sub-)namespace `_kind` :) We didn't notive because we didn't have scoped parsers. |
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We are currently developing Lean 4. The Lean 4 manual (work in progress) will give you an overview of the language.
Lean 3 is still the latest official release. This repository contains work in progress.
Important. Unless you are one of our collaborators
- We strongly suggest you use Lean 3.
- Pull requests are not welcome.
- New issues are not welcome, and will be closed without any feedback.