Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
This PR adds support for correctly handling computations on fields in `casesOn` for inductive predicates that support large elimination. In any such predicate, the only relevant fields allowed are those that are also used as an index, in which case we can find the supplied index and use that term instead. |
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