Question: a) Find the maximal elements. b) Find the minimal elements. c) Is there a greatest element?d) Is there a least element? e) Find all upper

a) Find the maximal elements. b) Find the minimal elements. c) Is there a greatest element?d) Is there a least element? e) Find all upper bounds of {a, b, c} f) Find the least upper bound of fa, b, c), if it exists. g) Find all lower bounds of tf, g, h. h) Find the greatest lower bound of (f, g, hj, if it exists

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