Is zero even or odd?

On Fri, 24 Dec 2004 00:17:14 +0100, Michael Mendelsohn
<invalid@msgid.michael.mendelsohn.de> wrote:

E 0
R = --- = --- = 0
I I

This leads to a contradiction when E=I=0.
Of course. E = MC^2
 
On Fri, 24 Dec 2004 07:20:53 GMT, "Nicholas O. Lindan" <see@sig.com>
wrote:

The circuit wasn't connected. Therefore no measurement was being
made. V = IR has no relevance. R < oo to close the circuit and
for the equation to apply.
Sorta like N/0 - irrelevant nonsense.
 
On Thu, 23 Dec 2004 19:02:27 GMT, "Kevin Aylward"
<salesEXTRACT@anasoft.co.uk> wrote:

It can do, but that is not the only reason for sqrt(-1). Its certainly
not how it came about in the first place.
It just pops up in mathematic operations. A little puzzling at first
like pi and phi.
 
On Thu, 23 Dec 2004 19:54:20 +0000, Dirk Bruere at Neopax
<dirk@neopax.com> wrote:

Clearly the infinities are
failures of the theory,


Or a failure of the mathematics.

Is there a difference?
That was my question.
 
Fred Bloggs <nospam@nospam.com> writes:

See:

Cohen,P.J., "The Independence of the Continuum Hypothesis." Proc. Nat.
Acad. Sci. U.S.A. 50 1143-148, 1963.
The independence of the continuum hypothesis has no apparent
relation to your statement. Note that the axiom of choice does not
imply the continuum hypothesis. The generalized continuum hypothesis
does imply the axiom of choice.
 
Fred Bloggs <nospam@nospam.com> writes:

Wouldn't that contradict Cohen? I see that ZF + GCH-> CH, and now you
say ZF + GCH -> Axiom of Choice, when Cohen showed /CH + ZFC leads to no
contradiction.
That ZF+GCH |- AC does not imply that ZF+AC |- GCH.
 
Fred Bloggs <nospam@nospam.com> writes:

Right- but ZF + GCH-> AC does mean you now have ZFC, and ZFC+/CH->/CH by
Cohen, so you can't have ZF + GCH-> CH any more.
"ZFC+/CH->/CH" is not what you meant to write, surely? Anyway, both CH
and not-CH are compatible with ZFC.
 
Dave Seaman <dseaman@no.such.host> writes:

...but it's fairly
easy to see that ZF + GCH -> AC, since ZF + GCH implies that every
cardinal is an aleph,
"Fairly easy" seems to me an exaggeration. Sierpinski's proof is far
from trivial.
 
In article <cfDyd.12532$ue4.3369@fe12.lga>,
John W. Kennedy <jwkenne@attglobal.net> wrote:
Nicholas O. Lindan wrote:
But the size of the set of real numbers is Aleph 1 (oo^2).

Aleph-1 is at least aleph-null^aleph-null.
But isn't c = 2^aleph-null, and aleph-1 is possibly less than c?
 
Fred Bloggs <nospam@nospam.com> writes:

I don't think you mean well-ordered in the algebraic sense- you mean a
total ordering on the cardinals.
Seaman's statement "every set can be well ordered" naturally uses
"well ordered" in the standard set-theoretical sense.
 
On 24 Dec 2004 16:13:35 +0100, Torkel Franzen <torkel@sm.luth.se>
wrote:

Fred Bloggs <nospam@nospam.com> writes:

... because the non-existence of infinity strictly between countability
and first uncountability ( power set of countability) has been shown to
be equivalent to the Axiom of Choice.

You're mistaken about this. Why these ill-informed exchanges in all
these unrelated groups?

Torkel, as Francis Bacon observed hundreds of years ago, this is the
inevitable babble that arises where discourse contains terms that have
not been carefully defined. `Infinity' is just such a quintessential
ambiguous term.
 
On Fri, 24 Dec 2004 15:34:06 GMT, Fred Bloggs <nospam@nospam.com>
wrote:

was based on an off hand remark by Halmos in his General
Topology, and he was almost certainly referring to this result, the date
is about right.
Humm... off hand remark of about the right date, you say, Well it's
certainly hard to argue with that.
 
On Fri, 24 Dec 2004 17:06:58 GMT, Fred Bloggs <nospam@nospam.com>
wrote:

I am assuming that that
snip
maybe that's where I'm going wrong.
Ah, the killer unwarranted assumption. Very dangerous.
 
On 24 Dec 2004 21:59:56 +0100, Torkel Franzen <torkel@sm.luth.se>
wrote:

"Fairly easy" seems to me an exaggeration.
And a casual comment intended to add support to an argument or
statement that is uncertain. `Clearly', `undoubtedly', `without
doubt', `it seems certain', and many others are in common use by
sophists and those who are just wrong.
 
On Fri, 24 Dec 2004 21:44:37 GMT, Fred Bloggs <nospam@nospam.com>
wrote:

I don't think you mean well-ordered in the algebraic sense- you mean a
total ordering on the cardinals.
Perhaps a question would be more direct than an opinion as to the
meaning of another.
 
On Fri, 24 Dec 2004 10:52:34 -0600, John Fields
<jfields@austininstruments.com> wrote:

Well... Not _really_, it's just a thought measurement.
---
Careful, you are getting into Planck's range there.
 
On Fri, 24 Dec 2004 15:39:18 GMT, "Androcles" <dummy@dummy.net> wrote:

How far does an apple roll if it makes two turns?
Exact answer in apple diameters, please.
Androcles

Ambiguous. An apple may turn without rolling at all.
`Two turns' does not necessarily indicate rotation. There is no
mention of translational motion. Are you new at framing apple
questions?
 
On Fri, 24 Dec 2004 07:57:21 -0800, "Alfred Z. Newmane"
<a.newmane.remove@eastcoastcz.com> wrote:

isn't a number but we still mix it up with numbers.

Of course it is a number, thats why we treat it as such.

Ok what it's value then?
.
square root of -1 is the number that yields -1 when squared. Another
useful abstract concept.
It is termed `imaginary' while most other numbers are just `abstract'.
They all come from the same place.
 
On Fri, 24 Dec 2004 07:58:30 -0800, "Alfred Z. Newmane"
<a.newmane.remove@eastcoastcz.com> wrote:

(Was refering to infinity (oo))
Alfy - another ambiguous inquiry. An abstract symbol useful in
several concepts.
 
On Fri, 24 Dec 2004 18:22:05 GMT, "Nicholas O. Lindan" <see@sig.com>
wrote:

I'm still waiting for a jpeg of quantity sqrt(-1) apples.
I confess my imagination does not stretch this far.
Then you are out of luck. I must confess, I thought the apples in
your request were imaginary.
 

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