uh yeah, agree, so why you doing that to me?
i'm pointing out that you're being obtuse.
look again at the examples i gave you -- schwinn bicycles have two wheels, but not everything that isn't a schwinn isn't a bicycle. all women are human but not everyone who isn't a woman isn't a human. look up de morgan's law and look at the notation i gave for Mark 16:16. look at the diagrams and the proof that shows modus tollens is not applicable to sets which are not mutually proper subsets.
if you think my math is wrong, prove it. prove modus tollens for the sets i diagrammed, if you can. i'm not incapable of mistakes, but i don't see any flaw in what i've shown you. if you find what you think is one, show me. 'modus tollens by fiat!!!!' is not a proof.
i'm going to bed. in the morning, if i have to, i will give a full proof of modus tollens failure. tho i should write something for DeighAnn, too - if i am up early enough, i'll do both in one.