Let A and B be distinct elements in T. Show that An BET. Case 1: A and B = R AnB =Øn R=Ø E T by a. Case 2: A = Ø and B = (-∞,a) Case 3: A =R and B = = (-∞,a) Case 4: A = (-∞,a) and B = (-∞,b) where a,b € R. WLOG, a > b.

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