Question
Let X be a topological space and let A be a subset of X. a. Define an interior point of a set. (5 marks) b.
Let X be a topological space and let A be a subset of X.
a. Define an interior point of a set. (5 marks)
b. Prove that the interior of a closed set is also closed. (10 marks)
c. Prove that the closure of an open set is also open. (8 marks)
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Probability And Statistics
Authors: Morris H. DeGroot, Mark J. Schervish
4th Edition
9579701075, 321500466, 978-0176861117, 176861114, 978-0134995472, 978-0321500465
