# MutantHub mutant #4134: Logical operator mutation at validation.cpp:4431
# Repository: bitcoin/bitcoin @ ddea9196493d3b8fd841a36a6c53efd85dac7a05
# File: src/validation.cpp:4431-4431
# Review: APPROVED; outcome: KILLED
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -4431,1 +4431,1 @@
-    if (!CheckBlock(block, state, params.GetConsensus()) ||
+    if (!CheckBlock(block, state, params.GetConsensus()) &&