
public enum Operator {
	PLUS,MINUS,MULT,DIV,LOW_STRICT,UP_STRICT,LOW_EGAL,UP_EGAL,EGAL,DIFF,AND,OR;
}



public enum Operator {
	PLUS,MINUS,MULT,DIV,LOW_STRICT,UP_STRICT,LOW_EGAL,UP_EGAL,EGAL,DIFF,AND,OR,NOT,OPP;
}


Add 2 operators for the 'not' function
Add 2 operators for the 'not' function
