tl,dr: if you know why does the result of `1 < 2 < 3` is True，then，you know why `True == False is False` is False. Forget other language, first. In Python the chain compare means `1 < 2 < 3` means `1 < 2 and 2 < 3`, so `True == False is False` means `True == False and False is False` and equal to `False and True`. So, the result is False.