diff --git a/LibAutomaton/CellElement.c b/LibAutomaton/CellElement.c
index e0fbfa1..7aa444a 100644
--- a/LibAutomaton/CellElement.c
+++ b/LibAutomaton/CellElement.c
@@ -137,3 +137,19 @@ void FreeCellElement(cellElement* element) {
 	element = NULL;
 }
 
+
+bool OR(bool a, bool b){
+	if (a || b){
+		return true;
+	} else {
+		return false;
+	}
+}
+
+bool AND(bool a, bool b){
+	if (a && b){
+		return true;
+	} else {
+		return false;
+	}
+}
diff --git a/LibAutomaton/CellElement.h b/LibAutomaton/CellElement.h
index 01c44f7..982fa1d 100644
--- a/LibAutomaton/CellElement.h
+++ b/LibAutomaton/CellElement.h
@@ -144,4 +144,21 @@ int SetNextRow(cellElement* tree,cellElement* elem);
 
 void recursivePrint(cellElement * tree);
 
+
+/**
+* Apply OR operator to a bool a and a bool b
+* @param a a bool
+* @param b a bool
+* @return result a or b
+*/
+bool OR(bool a, bool b);
+
+/**
+* Apply AND operator to a bool a and a bool b
+* @param a a bool
+* @param b a bool
+* @return result a and b
+*/
+bool AND(bool a, bool b);
+
 #endif
diff --git a/LibAutomaton/matrix.c b/LibAutomaton/matrix.c
index 88d6e42..dad465a 100644
--- a/LibAutomaton/matrix.c
+++ b/LibAutomaton/matrix.c
@@ -311,7 +311,6 @@ Matrix freeMatrix(Matrix matrix){
 }
 
 
-
 /* todos :
 *finir le freeMatrix
 *chasser les bugs