Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
4d697874b7
This PR refactors the way simp arguments are elaborated: Instead of changing the `SimpTheorems` structure as we go, this elaborates each argument to a more declarative description of what it does, and then apply those. This enables more interesting checks of simp arguments that need to happen in the context of the eventually constructed simp context (the checks in #8688), or after simp has run (unused argument linter #8901). The new data structure describing an elaborated simp argument isn’t the most elegant, but follows from the code. While I am at it, move handling of `[*]` into `elabSimpArgs`. Downstream adaption branches exist (but may not be fully up to date because of the permission changes). While I am at it, I cleaned up `SimpTheorems.lean` file a bit (sorting declarations, mild renaming) and added documentation. |
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