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Question: Why is Maple ignoring parentheses in set calculus?

Question:Why is Maple ignoring parentheses in set calculus?

MaplePleaseee 15 Maple
November 26 2020
1


lign1 := S*`union`(T intersect R);
                 lign1 := S (`intersect`(R, T))

lign2 := (S union T) intersect (S union R);
       lign2 := `intersect`(`union`(R, S), `union`(S, T))

verify({lign1}, {lign2});

 

My textbook says the expression lign1 and lign2 should be the same, but it outputs false. I suspect it's because Maple is ignoring the parenthesis in the first expression.

 
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