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 January 11th, 2017, 09:01 PM #1 Member   Joined: Nov 2016 From: Ireland Posts: 67 Thanks: 2 DeMorgan's with parentheses Say I have this: $\displaystyle \overline{(A+B)(A+B)}$ Can I smash up those parentheses in the middle there? To make it: $\displaystyle \overline{A+B} + \overline{A+B}$ Like is it basically just a multiplication sign? Or are there - consequences to the fact it should have been distributed? Last edited by skipjack; January 12th, 2017 at 04:59 AM.
 January 11th, 2017, 09:34 PM #2 Senior Member   Joined: Feb 2016 From: Australia Posts: 1,232 Thanks: 427 Math Focus: Yet to find out. It's correct. But don't think of it as multiplication and 'smashing up parentheses' (how violent! poor parentheses ). We just use regular algebraic notation to denote 'AND' and 'OR' in the Boolean world. Thanks from Kevineamon Last edited by skipjack; January 12th, 2017 at 05:00 AM.
 January 12th, 2017, 11:35 AM #3 Member   Joined: Nov 2016 From: Ireland Posts: 67 Thanks: 2 Lul - black holes are violent but there's a very good chance they probably created us. Smashing = violent yet creative

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