[net.math] A.C versus A.D.

gjk@talcott.UUCP (Greg Kuperberg) (03/16/85)

Lambert Meertens has stated that he sees no justification for the Axiom of
Choice.  Well, that's odd, because I see no justification for not having
it, and I particularly see no reason to have the Axiom of Determinism.  Are
you an A.D. fan, Mr. Meertens?  Are there other A.D. fans out there?  Are
there A.D.ists and/or anti-A.C.ists out there who are not constructivists?
---
			Greg Kuperberg
		     harvard!talcott!gjk

"No Marxist can deny that the interests of socialism are higher than the
interests of the right of nations to self-determination." -Lenin, 1918

play@mcvax.UUCP (Andries Brouwer) (03/18/85)

In article <362@talcott.UUCP> gjk@talcott.UUCP (Greg Kuperberg) writes:
>Lambert Meertens has stated that he sees no justification for the Axiom of
>Choice.  Well, that's odd, because I see no justification for not having
>it.
Well, of course there is no other justification for assuming AC than that
it is often convenient. But on the other hand, it is often inconvenient;
one gets these strange paradoxes like that of Banach & Tarski, while it
is possible to have a consistent theory of real analysis in which =each=
set is Lebesgue measurable, if only one does not assume AC.

lambert@boring.UUCP (03/27/85)

> Lambert Meertens has stated that he sees no justification for the Axiom of
> Choice.  Well, that's odd, because I see no justification for not having
> it, and I particularly see no reason to have the Axiom of Determinism.  Are
> you an A.D. fan, Mr. Meertens?  Are there other A.D. fans out there?  Are
> there A.D.ists and/or anti-A.C.ists out there who are not constructivists?

Sorry, if I am an A.D. fan, I am unaware of it, since I must confess I
don't know what A.D. claims.

(If Greg preaches the gospel to A.D. fans, he might achieve
A.D. conversion :-)  -- Sorry again, couldn't resist that.
-- 

     Lambert Meertens
     ...!{seismo,philabs,decvax}!lambert@mcvax.UUCP
     CWI (Centre for Mathematics and Computer Science), Amsterdam