Hi,
I have what I hope is a very simple question related to unfamiliar notation.
I am looking through a maths paper on a topic related to set theory which contains a symbol,
$\uplus$,
and I would like to know how, if at all, it differs from the typical
$\cup$
symbol in terms of its meaning.
The context leads me to believe that it does not in fact differ at all but since I don't even know 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 seems that the latex renderer also does not know about this obscure symbol '\cupplus' but '\uplus' does work.
edit2: thanks for all the replies! however, since everyone commented rather than providing an answer it seems I cannot grant the coveted 'answer' status to anyone. the disjoint union makes the most sense.
Best Answer
For the sake of giving a response to tag as an answer:
Some authors use this to denote a disjoint union of sets, i.e., "$A \cup B$ for sets $A, B$ where $A \cap B = \emptyset$."