Let's have some logic exercise:
T= truth, and F=false.
One should know this which one is true here: T==T and also this F==F and also this T==F
T AND F, F AND F, T AND T, F AND T.
T IMPLIES F, F IMPLIES T, T IMPLIES T, F IMPLIES F.
NOT { [ (T AND T) XOR (F IMPLIES T)] IMPLIES T }
This is logic.