Zulip Chat Archive

Stream: condensed mathematics

Topic: short exact sequences


Johan Commelin (Sep 29 2021 at 12:24):

Currently, the type of short exact sequences in a category C is called short_exact_sequence C.
My intention is that this moves to mathlib at some point.
Would it be "ok" to call this type SES C instead?

Johan Commelin (Sep 29 2021 at 12:24):

I think the brevity is worth the obscurity...

Riccardo Brasca (Sep 29 2021 at 12:29):

I agree that SES C is a nice abbreviation. And we definitely want short exact sequences in mathlib!

Yaël Dillies (Sep 29 2021 at 12:53):

What about short_ex_seq?

Filippo A. E. Nuccio (Sep 29 2021 at 12:53):

I think that SES is more familiar to mathematicians' ears.

Alex J. Best (Sep 29 2021 at 12:54):

SES is a pretty common abbreviation yeah

Yaël Dillies (Sep 29 2021 at 12:54):

Maybe? But it can probably stand for other things

Eric Rodriguez (Sep 29 2021 at 13:25):

what about abbreviation SES := short_exact_sequence?

Johan Commelin (Sep 29 2021 at 14:18):

the question is more what substring we use in other defs. Is it going to be mk_SES_of_foo or mk_short_ex_seq_of_foo, etc...

Adam Topaz (Sep 29 2021 at 14:19):

+1 for SES from me


Last updated: Dec 20 2023 at 11:08 UTC