Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
84cd2c49eb
This PR removes some unnecessary `Decidable*` instance arguments by using lemmas in the `Classical` namespace instead of the `Decidable` namespace. This might lead to some additional dependency on classical axioms, but large parts of the standard library are relying on them either way. |
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