Section 28: Problem 2 Solution
Working problems is a crucial part of learning mathematics. No one can learn topology merely by poring over the definitions, theorems, and examples that are worked out in the text. One must work part of it out for oneself. To provide that opportunity is the purpose of the exercises.
James R. Munkres
does not have a limit point (if there were a limit point it would be a limit point in the standard topology as well, i.e. 1, but in the given topology
is open).