Question: Are the following true or false? Set A is bounded above if and only if -A is bounded below. Set A is bounded below if

Are the following true or false?

Set A is bounded above if and only if -A is bounded below.

Set A is bounded below if and only if se -A is bounded above.

Suppose set A has a greatest lower bound. Then it is not necessarily true that lub(-A)=-glbA.

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