I was also a bit confused by this. I thought the standard notation was round brackets, but maybe doesn't work well in ASCII?
replyRound brackets are standard in the US but that notation is used in France and some other places.
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See, this is why Bourbaki introduced the ]0,1[ notation.
Is there any reasonable situation where you'd be confusing a vector with an interval? Having done mathematical writing and grading of tests using both styles of notation (simply adapting to what was used at the institution), I can't say that I ever noticed any practical difference between them.
replyFrom reading the linked paper[0], It explains closed interval only. "An interval union is a set of closed and disjoint intervals where the bounds of the extreme interval can be ±∞".
replyIt's possible to support that but it makes the code very very much more complicated. I've decided early on to not support it. Would be a cool addition though!
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