And please check these: 3) [(A-B)' - C]' [({0,2,3,4})' - C]' [({1,5})- {2,4,5}]' [{1}]' = {0,2,3,4,5} 4) (A∩C)∩ B' ({2})∩{2,3,5} = {2} Are they correct?
Last edited by Ackbeet; May 4th 2011 at 05:13 AM. Reason: Splitting thread.
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Originally Posted by Alphard And please check these: 3) [(A-B)' - C]' [({0,2,3,4})' - C]' [({1,5})- {2,4,5}]' [{1}]' = {0,2,3,4,5} [({1, 2, 3} - {0, 1, 4})' - {2, 4, 5}]' = [{2, 3}' - {2, 4, 5}]' = [{0, 1, 4, 5} - {2, 4, 5}]' = {0, 1}' = {2, 3, 4, 5} Originally Posted by Alphard 4) (A∩C)∩ B' ({2})∩{2,3,5} = {2} This is correct. -Dan
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