Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
a0b63deb04
This PR generalizes some typeclass hypotheses in the `List.Perm` API (away from `DecidableEq`), and reproduces `List.Perm.mem_iff` for `Array`, and fixes a mistake in the statement of `Array.Perm.extract`. |
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