On Thu, May 28, 2015, at 17:50, Skybuck Flying wrote: > Surpisingly enough I don't think there is a casual/common operator for > this > thruth table. > > AND does not apply. > OR does not apply. > XOR does not apply.
All sixteen possible logical operators have formal names. This one is called "B implies A". It can be implemented, as others have mentioned with "A or not B". The possibility of spelling these with the comparison operators, as some have suggested, is a consequence of Python's implementation where True == 1 and False == 0. In other languages bool may not be relatable (or at least not orderable), or False may be == -1. -- https://mail.python.org/mailman/listinfo/python-list
