User talk:RandomUndergrad

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Cheers! prime mover (talk) 10:30, 6 April 2020 (EDT)

Another welcome
Many thanks for your recent work, which plugs some holes. Please keep up the good work.

Please note that I have tinkered with your contributions: mainly for structuring and house style (in particular I feel it is important to put spaces between entities in a $\LaTeX$ construct, as it makes it easier to read and to follow -- the compiler does not care, but neat code is easily maintainable code). Also, I have added a few more explanatory steps on your Equivalence of Definitions of T3 Space so as to make it crystal clear as to what follows from what and why. (I'm getting old and dim.)

Incidentally, I was going to write a program to solve the $1009$, $1129$, $1201$ problem, but you beat me to it. Good job. --prime mover (talk) 04:50, 8 April 2020 (EDT)


 * Thanks for sifting through those pile of codes! I know there is merit in keeping codes organised, but I think I have a weird mentality where I appreciate seeing structure in others' works, but adopt a minimalistic approach to my own work. (I have been asked numerous times to make my written answers bigger and clearer)


 * Though I wish to know, how does one find the names (and pages) for the steps in proofs (Empty Intersection iff Subset of Complement, etc.)?


 * The short answer: knowing they are there, because I put them there.


 * The long answer: browse the "proofs" category in the subcategory, starting at "Proofs by Topic" where you would expect to find stuff (e.g. "Set Theory" and then within that "Set Complements"), or do a "what links here" for one of the key components in the proof. Yes, it is quite hard work to find stuff till you get a feel for the naming convention. Browse, browse, browse.


 * It is not intuitive how to get to the bulk of the proofs on by going top-down because we had a clown come on here a few years back who restructured everything according to his own ideas of how he thought the site ought to be structured, and I haven't got round to moving everything back into a new structure where everything's easy to find. --prime mover (talk) 16:25, 8 April 2020 (EDT)


 * For example, I do not know if ($x^n-y^n$ divides $x^m-y^m$ iff $n$ divides $m$) is an established result. RandomUndergrad (talk) 07:29, 8 April 2020 (EDT)
 * I don't think that one is. Browse Category:Algebra for results in that area. --prime mover (talk) 16:25, 8 April 2020 (EDT)

Proof Numbering
I did it once (as I recall) in Sum of Sequence of Binomial Coefficients by Powers of 2/Proof 1.

I did it only because this proof is short enough such that everyone can still see the second proof while viewing the first proof (and the statement of the theorem), without having to scroll, so they will know the existence of both proofs. Else it will sit at the bottom and be ignored by the uninterested reader.

If a new proof will not add new insights, I will not add them.

If I add them I will not replace the position of "first proof", unless it is sufficiently short (< 5 lines).

I do not know it is standard practise, if I did it elsewhere please tell me so and I'll reverse the damage. RandomUndergrad (talk) 06:53, 8 May 2020 (EDT)