This little guy craves the light of knowledge and wants to know why 0.999... = 1. He wants rigour, but he does accept proofs starting with any sort of premise.

Enlighten him.

you are viewing a single comment's thread
view the rest of the comments

[–] Xavienth@lemmygrad.ml 3 points 4 months ago (2 children)

Using i as an index 🤮

[–] mathemachristian@hexbear.net 6 points 4 months ago (2 children)

? Thats pretty standard though right?

[–] dat_math@hexbear.net 6 points 4 months ago* (last edited 4 months ago) (1 children)

in computer programs, yes

not so much in analysis

[–] mathemachristian@hexbear.net 3 points 4 months ago* (last edited 4 months ago)

I'm seeing n and i used as variables in Rudin, predominantly n though, but Im accustomed to n being a constant.

[–] Tomorrow_Farewell@hexbear.net 5 points 4 months ago (1 children)

The symbol 'i' is usually reserved for the imaginary unit.

[–] mathemachristian@hexbear.net 2 points 4 months ago

I've seen it used very frequently as a name for a variable, the imaginary unit i usually has a different typeface to distinguish the two is what Im accustomed to.

[–] dat_math@hexbear.net 2 points 4 months ago

Your feedback is valid and I apologize for rendering such an ugly proof