Question
(a) Determine the closed subsets of (R, T)
(b) Determine the limit points and the closure of each set below.
(Recall that the closure of a set is the smallest closed set containing that set.)
(1) [3, 7) (half-open interval)
(2) {7, 24, 47, 85}
(3) {3, 6, 9, 12, ...}
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