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Mathematics 42 Online
OpenStudy (anonymous):

What do the highlighted things in the picture mean?

OpenStudy (anonymous):

OpenStudy (anonymous):

@lgbasallote <- idunno how to call them in english D:

OpenStudy (anonymous):

The Symbol that looks like "U" means : Union .. as in A 'union' B And the other one means : "Belongs to" .. as in a belongs to R .. b belongs to R ..

OpenStudy (lgbasallote):

U means intersection \(\epsilon\) means summation? idk.

OpenStudy (lgbasallote):

oh wait...it's element i believe

OpenStudy (anonymous):

@Aditi_Singh Okay, so union meaning? Like joined with? (If that makes sense..)

OpenStudy (lgbasallote):

for example you have A(1,2,3, 4) and B {5,6,7,8} AUB = {1,2,3,4,5,6,7,8}

OpenStudy (lgbasallote):

it means you combine the elements

OpenStudy (anonymous):

it is exactly as @lgbasallote said :)

OpenStudy (anonymous):

Ohh okay. Why thank y'all :)

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