Happy Pi Day!

[zandperl]

Icon seen on math_jokes, owned by supamikeymon

Comments

[l0stmyrel1g10n]

meh. i wasn't paying enough attention in set theory. explain?

[zandperl]

R is all the real numbers, expressible on the number line.
R2 makes that two-dimensional.

The "E" means "member of the set", but is sometimes abbreviated by saying "on" instead.

You can figure it out from there.

[q10]

i don't buy it. the snakes are occupying R2, they aren't members of it. no snake is a pair of the form (x,y) for x and y in R; rather, the snakes on the plane are situated at such points (or occupy collections of such points). points are in R2 - other two-dimensional objects occupying the plane (lines, curves, polygons, et c.) do not stand in the set-theoretic membership relationship to R2.

η: for that matter, i have a B.A. in math, and most of the time i remember set-membership being pronounced ‘in’. it's likely that this is because i focused on logic and algebra - ‘on’ is probably more common in some other areas.

[l0stmyrel1g10n]

wait, i get it upon reading other people's comments. it doesn't work if you learned "e" as "element of".

[q10]

what about the ‘...or you saw a better version of the same joke somewhere else when the movie was still at least quasi-topical’?

[zandperl]

That's possible too. I hadn't.

[meig]

I need to take more math. WAY more math :) But I am gong to assume it has something to do with snakes on a plane.

[zandperl]

Yep. See my comment to "lostmyreligion" above for a *little* more explanation. :)

BTW I enjoy reading how you're doing in Math. It's interesting to see it from the other side of the table for me. I'm glad to see you're doing well in it. :)

[meig]

I'm actually doing metric conversion crap right now. I'm not sure if it's the book or if my brain has just changed, but I am getting this stuff way more than I did in the past. This is all really basic though, anything more advanced still boggles me.

[jrtom]

*snork*

(Quibble: although I never took topology or differential geometry, I have a strong suspicion that there are things that are isomorphic--even diffeomorphic--to ℜ2 that aren't planes. :) )

Anyway, clearly the real question is whether snakes can tile the plane. ;)

[tiurin]

Ehhh. I prefer Mathematical Anti-Telharsic Harfatum Septomin.