Sujet : Re: WM and end segments...
De : chris.m.thomasson.1 (at) *nospam* gmail.com (Chris M. Thomasson)
Groupes : sci.mathDate : 23. Jul 2024, 22:20:09
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v7p6qa$1c9as$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12
User-Agent : Mozilla Thunderbird
On 7/23/2024 1:34 PM, Moebius wrote:
Am 23.07.2024 um 22:03 schrieb Chris M. Thomasson:
> On 7/23/2024 12:57 PM, Chris M. Thomasson wrote:
>
>> "LLLLLLLL....." is an infinite expression, indeed....
No, it's not.
I am not in the programming world where "LLLLLLLL....." is a string literal, so to speak. Think if LLLLLLLL..... representing an endless string of L's. So, grab next would always return an L.
So a finite shorthand for the infinite expansion? Fair enough?
Hint: It consists of 8 "L"s and 5 "."s, in total of 13 characters. No?
Sure, but this consists of
".(9)" 4 characters, or 5 with the NUL in C/C++, yet, say it translates into .(9), aka endless nines, aka one in base 10. Right? A parser can do this.
(A programmer really should know this! :-)
Of course I do.
> So, it can be reduced to:
>
> (L) = LLL... ? Fair enough?
More math like, defining it as an infinite sequence:
(c_n)_(n e IN) with c_n = "L" for all n e IN. :-P
We'd usually write (a term referring to) this sequence the following way:
("L", "L", "L", ...) .
:-P
Of course, most mathematicains would just write
(L, L, L, ...)
when it's clear that "L" is not some sort of variable or arbitrary constant but should refer to the letter "L". :-P
Hint: WM does not even know how to write terms for (i.e. referring to) infinite sequences properly.
Big time!