Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.


Virgil
Posts:
8,833
Registered:
1/6/11


Re: Matheology � 191
Posted:
Jan 12, 2013 6:15 PM


In article <837a48d1fc7249b294754b12211db5e9@10g2000yqk.googlegroups.com>, WM <mueckenh@rz.fhaugsburg.de> wrote:
> On 12 Jan., 20:34, Ben Bacarisse <ben.use...@bsb.me.uk> wrote: > > WM <mueck...@rz.fhaugsburg.de> writes: > > > On 12 Jan., 16:24, Ben Bacarisse <ben.use...@bsb.me.uk> wrote: > > >> WM <mueck...@rz.fhaugsburg.de> writes: > > >> > Matheology § 191 > > > > >> > The complete infinite Binary Tree can be constructed by first > > >> > constructing all aleph_0 finite paths and then appending to each path > > >> > all aleph_0 finiteley definable tails from 000... to 111... > > > > >> > 0 > > >> > 1, 2 > > >> > 3, 4, 5, 6 > > >> > 7, ... > > > > >> > This Binary Tree contains aleph_0 * aleph_0 = aleph_0 paths. > > > > >> No, it contains aleph_0 * whatever the cardinality of the set of tails > > >> is. Talk about begging the question! > > > > > A tail can be defined by a finite word *only*. Nobody can quote an > > > infinite string digit by digit  although most mathematicians believe > > > that instinctively when pondering about set theory (but never when > > > doing analysis). > > > > That's the part that was missing. Without it you were begging the > > question because the set of paths and the set of tails are equinumerous. > > With it, the argument about tails and finite paths is pointless  it's > > just padding around the same tired old claim. > > It's only in order to easen the problem for you and others, who are > comprehending very slowly.
The "problem" is easy enough already, and is only obfuscated by WM's "easenings". > > Paths are solely defined by nodes, according to set theory. (Otherwise > you could never gather uncountably many.)
They are equally well defined by direction of branchings, as a sequence of left branching versus right branching.
> Now try to find a path that is missing in the Binary Tree constructed > by countably many paths.
Until you provide an way of determining whether a path is included in your set, for example by providing a list of those which you have, we have no way of determining whether one of ours is also one of your or not.
Since we have reason not to trust you if we were to present a path to you, you must provide an independent way for us to test without accepting you mere word for it
> You fail.
We have not failed until you have provided u with a list of all your paths or some other way to determines whether you have them all other than having to take your word for it.
But you cannot so that, so you can never establish your claim.
> Your assertion fails.
It is your assertions which fail, at least outside your WMytheology.
> But you insist in believing that old nonsense because it is so > familiar.
We do not believe your nonsense, however familiar it may become, because it is never supported by valid arguments and often only supported by trivail ly flawed arguments.
> So you ask for further paths by means of finite definitions like 1/3. > Therefore I have appended all possible tails to all finite paths > (which would be sufficient to cover the tree but not sufficient to > answer the latter question).
Your set of "all possible tails" is itself a provably uncountable (unlistable) set, as it obviously bijects with the set of all possible binary sequences. 



