# MutantHub mutant #3905: Relational operator mutation at operation_patterns.ipp:507
# Repository: libbitcoin/libbitcoin-system @ c37c9b73278f1f97e6eb6421f3544f5e58edba2f
# File: include/bitcoin/system/impl/chain/operation_patterns.ipp:507-507
# Review: APPROVED; outcome: KILLED
--- a/include/bitcoin/system/impl/chain/operation_patterns.ipp
+++ b/include/bitcoin/system/impl/chain/operation_patterns.ipp
@@ -507,1 +507,1 @@
-        code_ == nominal_opcode_from_data(get_data()) : is_number(code_);
+        code_ != nominal_opcode_from_data(get_data()) : is_number(code_);