Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
9107d27368
This PR removes the `extends Monad` from `MonadAwait` and `MonadAsync` to avoid underdetermined instances. The issue was discussed here: [#lean4 > Is Std.Internal.IO.Async.MonadAsync.toMonad a bad instance?](https://leanprover.zulipchat.com/#narrow/channel/270676-lean4/topic/Is.20Std.2EInternal.2EIO.2EAsync.2EMonadAsync.2EtoMonad.20a.20bad.20instance.3F) |
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