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Jan
4
comment Notation for half-integers
Ah you are right! Thanks for pointing this out.
Jan
4
comment Notation for half-integers
Wikipedia says for half-integers to use $\mathbb{Z} +\frac{1}{2}$, but I like your notation better, since it extends to the set of rational numbers. I'll go ahead and use it, at least for my notes. Edit: It's worth noting that wikipedia's notation lets us translate the entire set.
Sep
19
comment Can one make a stack of books that spreads infinitely beyond the edge of a stable?
Thanks for pointing out that subtlety.