diff --git a/SM3中的FF2和GG2函数.md b/SM3中的FF2和GG2函数.md
index 6e813a7..fd13409 100644
--- a/SM3中的FF2和GG2函数.md
+++ b/SM3中的FF2和GG2函数.md
@@ -57,10 +57,10 @@ $(X \land Y) \bigoplus (X \land Z) $
 
 $\lnot((X \land Y \land \lnot Z) \lor (X \land Z \land \lnot Y))$  
 = $\lnot(X \land Y \land \lnot Z) \land \lnot(X \land Z \land \lnot Y)$   
-= $(\lnot X \lor \lnot Y \lor Z) \lor (\lnot X \lor \lnot Z \lor Y)$  
+= $(\lnot X \lor \lnot Y \lor Z) \land (\lnot X \lor \lnot Z \lor Y)$  
 
 $((X \land Y \land \lnot Z) \lor (X \land Z \land \lnot Y)) \land (\lnot Y \lor \lnot Z)$   
 = $(X \land Y \land \lnot Z) \lor (X \land Z \land \lnot Y)$  
 
-$((\lnot X \lor \lnot Y \lor Z) \lor (\lnot X \lor \lnot Z \lor Y)) \land (Y \land Z)$  
+$((\lnot X \lor \lnot Y \lor Z) \land (\lnot X \lor \lnot Z \lor Y)) \land (Y \land Z)$  
 = $(\lnot X \land Y \land Z)$  
\ No newline at end of file