Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
490d16c80d
Declarations with `@[elab_as_elim]` could elaborate as type-incorrect expressions. Reported by Jireh Loreaux [on Zulip](https://leanprover.zulipchat.com/#narrow/stream/287929-mathlib4/topic/bug.20in.20revert/near/450522157). (In principle the elabAsElim routine could revert fvars appearing in the expected type that depend on the discriminants (if the discriminants are fvars) to increase the likelihood of type correctness, but that's at the cost of some complexity to both the elaborator and to the user.) |
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This is the repository for Lean 4.
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