I don't think that or else has ever been specifically mentioned, but I could be wrong? If it's "not both" Then it is A --> /B or B --> /A Meaning that the minimum out of the two could be 0, and the max could be 1 - either A or B, but both of them cannot be in.
Or else... sound like A, or B, or C.... which would be just one of the three I think....
Comments
I don't think that or else has ever been specifically mentioned, but I could be wrong?
If it's "not both"
Then it is A --> /B
or B --> /A
Meaning that the minimum out of the two could be 0, and the max could be 1 - either A or B, but both of them cannot be in.
Or else... sound like A, or B, or C.... which would be just one of the three I think....