From: |-|ercules on
"Joshua Cranmer" <Pidgeot18(a)verizon.invalid> wrote ...
> On 06/28/2010 01:25 AM, |-|ercules wrote:
>> GET IT RIGHT! LEARN TO make your insults CLEAR and SPECULATIVE!
>> A rabbit possum will haunt YOU *IN* your nighties!
>
> Actually, one of the definitions of "haunt" is (according to my
> dictionary) "to visit frequently." If you consider your nightmares to be
> a place for your mind to dwell, it is not hard for a rabid (not rabbit,
> rabid) possum to haunt them.


I don't mind people missing the point of my posts but NOBODY, NOBODY
denegrades the rabbit possum outside of the realm of dwelling minds meanwhile
denegrading my use of a living language with uncouth derelict terms mmmkay!

Herc
From: herbzet on


George Greene wrote:

> And you REALLY DON'T want to say lim S for a list S, because
> that puts the burden OF DEFINITION IN FORMAL LANGUAGE back
> ON YOU instead of on Herc.
> Herc in any case is NOT going to concede that he is using
> limits, and that what is really going on here is that certain
> kinds of infinite collections can approach a limit WITHOUT
> actually CONTAINING it.

Indeed, the set of, e.g., the rational numbers has vastly more
limit points than it has elements ...
From: David Bernier on
Transfer Principle wrote:
> On Jun 24, 10:57 pm, David Bernier<david...(a)videotron.ca> wrote:
>> Tim Little wrote:
>>> True, but irrelevant to Cantor's proof (which uses the ordinary
>>> mathematical meaning) and everything else he's ranting about though.
>> I have this analogy between chess concepts and mathematics concepts
>> which occurred to me not long ago.
>> In chess, there are the Laws of chess. This I associate
>> to formal deductions in FOL ZFC. Anybody can check
>> a proof of Cantor's result that there is no bijection
>> between omega and P(omega); this would be
>> tedious and probably un-enlightening.
>
> But as not everyone is forced to play chess, not everyone
> is forced to use FOL+ZFC.
>
> Also, it's possible to know all the rules of chess, and
> nonetheless choose not to play it, or believe that the game
> isn't worth playing. Yet the "chess players" in this thread
> (the ZFC Herc-"religionists") insist that Herc doesn't know
> how to play chess (doesn't understand FOL+ZFC) merely
> because he doesn't want to play it (want to use FOL+ZFC).
>
> It's possible to know all the rules of a game and still not
> choose to play it, but this possibility has escaped most
> posters in this thread.
>
> This is how I interpret Bernier's analogy.

I was thinking of first order set theory (ZFC),
without any defined terms; for example,

the following is a standard defined term: _ordered_pair_ .
The ordered pair (x, y) := { {x}, {x, y} } . (Kuratowski def.)
Reference:
< http://en.wikipedia.org/wiki/Ordered_pair>

Getting rid of all defined terms, one is left with
bare set theory.

Then a well-formed formula (or just formula)
with the free variable f expressing:
"f is a function from omega to P(omega)"
becomes long and unwieldy.

Once I wrote a computer program to re-write formulas
so that no defined terms were used: only
element of and logical connectives and quantifiers
were allowed. Then " x is the Real numbers"
was re-written as a very long formula.

So my point is, even with the Laws of ZFC,
non-trivial formulas are often unwieldy when
all is re-written with no use of defined terms.

David Bernier