From a905623a7554b363204097fcd5057dc7cef7f074 Mon Sep 17 00:00:00 2001
From: Tobias Grosser <tobias@grosser.es>
Date: Sun, 11 Aug 2024 10:50:03 +0100
Subject: [PATCH] chore: avoid non-terminal simp

---
 src/Init/Data/BitVec/Lemmas.lean | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Init/Data/BitVec/Lemmas.lean b/src/Init/Data/BitVec/Lemmas.lean
index 3ccdfc14013b..148f578f235f 100644
--- a/src/Init/Data/BitVec/Lemmas.lean
+++ b/src/Init/Data/BitVec/Lemmas.lean
@@ -164,7 +164,7 @@ theorem toNat_zero (n : Nat) : (0#n).toNat = 0 := by trivial
 
 @[simp] theorem sub_toNat_mod_cancel {x : BitVec w} (h : ¬ x = 0#w) :
     (2 ^ w - x.toNat) % 2 ^ w = 2 ^ w - x.toNat := by
-  simp [bv_toNat] at h
+  simp only [toNat_eq, toNat_ofNat, Nat.zero_mod] at h
   rw [Nat.mod_eq_of_lt (by omega)]
 
 @[simp] theorem sub_sub_toNat_cancel {x : BitVec w} :