[MD] Reet and the Weakest Link

[Ron Kulp]

Ham --

Ham:
I anticipate that others may want to ring in on this, but you seem to be

stressing "contrariety" in the contingencies of my AB dichotomy.  While
I 
don't dispute that possibility, I see no reason to specify the contents
of 
these contingencies in the relational proposition AB, nor the need to
posit 
a not-AB (i.e., nothingness).

What if I deny that "BOTH AB and NOT AB may exist without
contradiction"?

Ron:
According to Aristotle and Thomas Aquinas, this is a fundamental
principle of thought, which is so basic that it can be successfully
argued for merely by showing that any opponents of the principle must be
using it (and thus be committed to it) themselves. Thus, Aristotle
considers the case of someone who denies the principle in the strong way
- holding that every proposition is both true and false - and asks why
such a person goes on the Megara road to get to Megara from Athens,
since on such a person's view it is just as true that any other road
would get him to Megara.