Date: Dec 12, 2012 11:22 AM
Author: Aatu Koskensilta
Subject: Re: A formal counter-example of Ax Ey P(x,y) -> Ey Ax P(x,y)
Dan Christensen <Dan_Christensen@sympatico.ca> writes:
> This problem is central to predicate calculus.
What problem is that? There is no apparent problem in the observation
that (x)(Ey)P(x,y) does not imply (Ey)(x)P(x,y).
--
Aatu Koskensilta (aatu.koskensilta@uta.fi)
"Wovon man nicht sprechen kann, darĂ¼ber muss man schweigen"
- Ludwig Wittgenstein, Tractatus Logico-Philosophicus