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this is another problem which i don't know how to start..im not sure which proof i should use to solve this problem

the problem is:

If A,B,C,and D are sets, does it follow

(A Φ B) Φ (C Φ D) = (A Φ C) Φ (B Φ D)

the symbol that is separting the characters is called the oplus symbol, that's the closet symbol i could find

the oplus symbol is a circle with one line going across it and one line going down

the problem is:

If A,B,C,and D are sets, does it follow

(A Φ B) Φ (C Φ D) = (A Φ C) Φ (B Φ D)

the symbol that is separting the characters is called the oplus symbol, that's the closet symbol i could find

the oplus symbol is a circle with one line going across it and one line going down

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