Question: Suppose that A B . ( a ) Show that if B is bounded from above, then A is bounded from above. ( b )

Suppose that A B.
(a) Show that if B is bounded from above, then A is bounded from above.
(b) Show that if B is bounded from below, then A is bounded from below.
(c) Suppose that B is bounded from above, and hence A is bounded from above by (a).
Show that sup A sup B.

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