(August 26, 2013 at 10:25 pm)discipulus Wrote: I get the impression from you that you do not believe this is a good argument. So I will accept the challenge, if that is what you are extending to me, to defend the argument.
As I said prior, I have no intention of having this debate again. It's been done to death. I believe the words I used were "would rather claw my eyes out with a fork".
Also - you are correct in that I reversed the meaning of "valid" and "sound" with respect to logical arguments. Mea culpa. That error does not detract from the point of my post that P1 and P2 of the KCA are not known to be true, for the reasons I gave.