Let R (the set of real numbers) be equipped with the discrete topology, then the semi open interval ]1,2] is O open O Closed Clopen O Neither open nor closed
Let R (the set of real numbers) be equipped with the discrete topology, then the semi open interval ]1,2] is O open O Closed Clopen O Neither open nor closed
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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topologie
![Let R (the set of real numbers) be
equipped with the discrete topology,
then the semi open interval ]1,2] is
O open
O Closed
Clopen
O Neither open nor closed](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feeba0fbf-9265-4249-be46-5c587bce6ace%2F6f937aff-4fe9-4603-b1dd-07dc4b92031b%2Flawovp3f_processed.png&w=3840&q=75)
Transcribed Image Text:Let R (the set of real numbers) be
equipped with the discrete topology,
then the semi open interval ]1,2] is
O open
O Closed
Clopen
O Neither open nor closed
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