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Topic: The ambiguity of 0^0 on N
Replies: 106   Last Post: Sep 29, 2013 10:06 AM

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Dan Christensen

Posts: 2,798
Registered: 7/9/08
Re: The ambiguity of 0^0 on N
Posted: Sep 19, 2013 10:51 AM
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On Thursday, September 19, 2013 7:26:55 AM UTC-4, Peter Percival wrote:
> Dan Christensen wrote:
>

> > On Wednesday, September 18, 2013 7:11:53 PM UTC-4, Rotwang wrote:
>
>
>

> >>
>
> >> will follow from people defining exponentiation in the usual way?
>
> >
>
> > Whatever consequences may arise from a calculation that results in a
>
> > value of 1 when it should be 0. The result could be catastrophic.
>
>
>
> When "should" 0^0 = 0?
>


The value of 0^0 should not depend on the context.

>
>
> This is what has happened. You were writing a computer program and you
>
> wrongly believed that exp(0,0)--or whatever the notation is--would
>
> return 0. It didn't, it returned--quite properly--1. Your program
>
> being buggy is not a catastrophe. The thing to do with bugs is to fix
>
> them[*], _not_ try to "fix" mathematics.
>


Let's see your proof that 0^0=1. Sorry, simply defining it as such won't do in this context.


>
>

> > The most well known theorem that makes use of 0^0 is probably the
>
> > Binomial Theorem. And it can easily be restated to avoid its use,
>
> > e.g. by stating at the outset that (x+0)^n = x^n, etc.
>
>
>
> That (x+0)^n = x^n follows from the definition of addition.


Yes.

> Note, btw,
>
> that the definition of + begins by saying what x+0 is, it doesn't start
>
> with x+1 or x+2.
>


Technically, + on N is not simply defined. It is a construction based Peano's Axioms (or their modern equivalent) and set theory. You could probably construct an exponent function on N with 0^0=1, but you could also construct one with 0^0=0. And they would agree on every value but that assigned to 0^0.

Dan
Download my DC Proof 2.0 software at http://www.dcproof.com


Date Subject Author
9/18/13
Read The ambiguity of 0^0 on N
Dan Christensen
9/18/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/18/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/18/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/18/13
Read Re: The ambiguity of 0^0 on N
Virgil
9/18/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/18/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/18/13
Read Re: The ambiguity of 0^0 on N
Rock Brentwood
9/18/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/20/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Virgil
9/19/13
Read Re: The ambiguity of 0^0 on N
Virgil
9/19/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/18/13
Read Re: The ambiguity of 0^0 on N
Virgil
9/18/13
Read Re: The ambiguity of 0^0 on N
fom
9/18/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/28/13
Read Re: The ambiguity of 0^0 on N
Shmuel (Seymour J.) Metz
9/29/13
Read Re: The ambiguity of 0^0 on N
Marshall
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Michael F. Stemper
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/20/13
Read Re: The ambiguity of 0^0 on N
fom
9/20/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/20/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Helmut Richter
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
JT
9/19/13
Read Re: The ambiguity of 0^0 on N
JT
9/19/13
Read Re: The ambiguity of 0^0 on N
Michael F. Stemper
9/19/13
Read Re: The ambiguity of 0^0 on N
JT
9/19/13
Read Re: The ambiguity of 0^0 on N
JT
9/19/13
Read Re: The ambiguity of 0^0 on N
JT
9/19/13
Read Re: The ambiguity of 0^0 on N
Helmut Richter
9/28/13
Read Re: The ambiguity of 0^0 on N
Shmuel (Seymour J.) Metz
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/19/13
Read Re: The ambiguity of 0^0 on N
Karl-Olav Nyberg
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/19/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/25/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/26/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/27/13
Read Re: The ambiguity of 0^0 on N
Brian Q. Hutchings
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/18/13
Read Re: The ambiguity of 0^0 on N
Rock Brentwood
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Rotwang
9/19/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
fom
9/20/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/20/13
Read Re: The ambiguity of 0^0 on N
fom
9/20/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/20/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/20/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/20/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/20/13
Read Re: The ambiguity of 0^0 on N
Virgil
9/20/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/20/13
Read Re: The ambiguity of 0^0 on N
fom
9/20/13
Read Re: The ambiguity of 0^0 on N
Michael F. Stemper
9/20/13
Read Re: The ambiguity of 0^0 on N
LudovicoVan
9/21/13
Read Re: The ambiguity of 0^0 on N
Michael F. Stemper
9/21/13
Read Re: The ambiguity of 0^0 on N
LudovicoVan
9/21/13
Read Re: The ambiguity of 0^0 on N
Richard Tobin
9/20/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/20/13
Read Re: The ambiguity of 0^0 on N
Peter Percival
9/21/13
Read Re: The ambiguity of 0^0 on N
Dan Christensen
9/19/13
Read Re: The ambiguity of 0^0 on N
Karl-Olav Nyberg

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