Mathematics, 14.09.2019 02:30, ALEX33333
Let a and b be sets. prove that (a) acb aub=b; (b) acb = anb = a.
Answers: 2
. 
. So we will prove that 
. Let 
, then 
or 
. If 
. We finish the proof showing 
. Let 
. Therfore 
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Let a and b be sets. prove that (a) acb aub=b; (b) acb = anb = a....
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