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Which of the following is not correct?

A) In a discrete metric space every-subset is open
B) \(\phi\) is open 3
C) Union of any family of open set is open
D) Arbitrary intersection of ope'nI sets is open

Correct Answer:




D) Arbitrary intersection of ope'nI sets is open

Description for Correct answer:
Arbitrary intersection of open sets need not be open. Only finite intersection of open sets is open.

Part of solved Real Analysis questions and answers : >> Elementary Mathematics >> Real Analysis

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