- #1

putiiik

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Prove that (A⊕B)∩A= A-B! Thank you!

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- MHB
- Thread starter putiiik
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- #1

putiiik

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Prove that (A⊕B)∩A= A-B! Thank you!

- #2

Evgeny.Makarov

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- #3

HOI

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- #4

Evgeny.Makarov

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I believe that $A\oplus B$ denotes the symmetric difference of $A$ and $B$.

- #5

HOI

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It seems very strange to us a "+" symbol to mean a "difference".

- #6

I like Serena

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It's the union of both sets except for their intersection.It seems very strange to us a "+" symbol to mean a "difference".

As such a "+" seems appropriate.

It's just that to define it, we typically take the union of the 2 mutual differences, which is apparently why it is called symmetric difference.

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