$uplus$,

and also I would certainly favor to recognize just how, if at all, it differs from the typical

$cup$

symbol in regards to its meaning. The conmessage leads me to think that it does not in fact differ at all however given that I do not even recognize the name of the symbol other than the latex id that I looked up, I can"t seem to confirm that suspicion. Cheers

edit: it appears that the latex renderer additionally does not know about this obscure symbol "cupplus" however "uplus" does occupational.

You watching: Latex union of sets

edit2: thanks for all the replies! however, given that everyone commented fairly than providing a solution it appears I cannot give the coveted "answer" status to anyone. the disjoint union renders the a lot of feeling.

set-theory notation

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edited Apr 17 "10 at 1:46

blackkettle

asked Apr 16 "10 at 7:19

blackkettleblackkettle

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$endgroup$

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## 2 Answers 2

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9

$egingroup$

For the sake of offering an answer to tag as an answer:

Some authors usage this to denote a disjoint union of sets, i.e., "$A cup B$ for sets $A, B$ wbelow $A cap B = emptyset$."

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edited Dec 6 "18 at 4:01

Community♦

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answered Apr 17 "10 at 5:00

J MJ M

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$endgroup$

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$egingroup$

It might likewise represent that the union is a multi-collection (and also the both operands are probably multi-sets). Then the multiplicity of an element in the outcome is the amount of its multiplicities in the operands, that describes the existence of the + in the symbol.

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answered Dec 21 "18 at 17:21

Mordechai ShalomMordechai Shalom

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$endgroup$

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