Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Topic: Irrefutable proofs that both Dedekind and Cauchy did not produce
any valid construction of the mythical "real" number

Replies: 5   Last Post: Oct 4, 2017 10:43 AM

 Messages: [ Previous | Next ]
 bursejan@gmail.com Posts: 5,395 Registered: 9/25/16
Re: Irrefutable proofs that both Dedekind and Cauchy did not produce
any valid construction of the mythical "real" number

Posted: Oct 4, 2017 10:43 AM

You must have misunderstood the idea of a cut,
no limit involved, only predication.

So when you write and begin with:
So that the cut can be written as: [Sn,Ln]

This is already nonsense, these are just
some monoton increasing and monoton decreasing

sequences. Then when you write:
lim n->oo [Sn,Ln] = k (I guess you mean [k,k])

Then you have exactly destroyed the idea
of a cut. Remember what Markus Klyver told you
3 trillion times? Q-series need not have a limit
in Q. So what is this k? How do you want to make

a Q-cut? On the same reason the following is
not a Q-cut, where do you take pi from?

(-oo,pi) [pi,oo)

Further your attempt of doing something with
e is also complete nonsense. If you would

think harder, you would find a Q-cut for e.

Am Freitag, 29. September 2017 14:06:42 UTC+2 schrieb John Gabriel:
>
> Comments are unwelcome and will be ignored.
>
> Posted on this newsgroup in the interests of public education and to eradicate ignorance and stupidity from mainstream mythmatics.
>
> gilstrang@gmail.com (MIT)
> huizenga@psu.edu (HARVARD)
> andersk@mit.edu (MIT)
> david.ullrich@math.okstate.edu (David Ullrich)
> djoyce@clarku.edu
> markcc@gmail.com

Date Subject Author
9/29/17 francois.grondin2003@gmail.com
9/29/17 Dan Christensen
9/29/17 Pancho ValveJob
10/3/17 Markus Klyver
10/4/17 bursejan@gmail.com