M mathaddict Sep 2008 1,261 539 West Malaysia May 29, 2010 #2 may said: Using the algebraic law of set prove that A-B=B'-A' Click to expand... hi you can start proving from the RHS B'-A' =B' n A =A n B' =A-B

may said: Using the algebraic law of set prove that A-B=B'-A' Click to expand... hi you can start proving from the RHS B'-A' =B' n A =A n B' =A-B