lean4-htt/tests/lean/run/dsimp_proofs.lean at e30303e33c92cc66211f382bd10be4ba7679b033 - max/lean4-htt - maxgit: wireguard access, git repository.

max/lean4-htt

JovanGerb f699e18212

perf: dsimp shouldn't visit proofs (#6973 )

This PR stops `dsimp` from visiting proof terms, which should make
`simp` and `dsimp` more efficient.
In this attempt I have `dsimp` leave the proofs in place as-is, instead
of simplifying the proof type.

Closes #6960

2025-05-14 22:09:25 +00:00

7 lines

239 B

Text

Raw Blame History

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

 @[simp]
 theorem foo (i : Nonempty α) : Nonempty.intro (Classical.choice i) = i := rfl
 /-- error: dsimp made no progress -/
 #guard_msgs in
 example : Classical.choice (Nonempty.intro (Classical.choice instNonemptyFloat)) = 0 := by
   dsimp