Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
7034310a3b
This PR fixes an issue in `grind`'s disequality proof construction. The issue occurs when an equality is merged with the `False` equivalence class, but it is not the root of its congruence class, and its congruence root has not yet been merged into the `False` equivalence class yet. closes #9562 |
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