@engineer,
What do you think of the following opinion? I am confused by two different opinions.
https://able2know.org/topic/550219-1#post-7038813
1. Neither you nor he is right.
2. Not either you or he is right.
3. Either you or he is not right.
4. Both you and he are not right.
In 1, 2, and 4 both people are wrong. But in 3, one person is wrong.