Please explain me how to find lub and glb of the sets (-1,1), [2,5) and {pi+1,pi+2,pi+3,.....}

Please help..

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- Dec 17th 2009, 04:53 PMkjchauhanFind lub and glb..
Please explain me how to find lub and glb of the sets (-1,1), [2,5) and {pi+1,pi+2,pi+3,.....}

Please help.. - Dec 17th 2009, 08:44 PMDrexel28