16 Nov
2010
16 Nov
'10
3:16 a.m.
MRAB
No, but I would vote for {,}.
−1. The comma in the set literal syntax is used to separate items, and so that looks like a set that explicitly *not* empty, but rather containing (unspecified) items. -- \ “Broken promises don't upset me. I just think, why did they | `\ believe me?” —Jack Handey | _o__) | Ben Finney