Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
1842bb5476
This PR improves elaboration performance for structure instance notation with large numbers of fields. It also uses beta-reducing substitution for structure parameters, which is already the case for structure fields. It substitutes field values into types when they are needed, avoiding quadratic runtime complexity. |
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| lean-toolchain | ||
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