Re: Please help, Thanks!



May I please have he complete proof? I really in rush of this one but still have not idea of how to solve.

the other addition table is
+ | 0 1 a b
-------
0 | 0 1 a b
1 | 1 0 b a
a | a b 0 1
b | b a 1 0

Thank you so so so so so much!
.


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