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Decide Whether or Not the Set Is Closed Under Addition $\{ \mathrm { n } \in \mathrm { N } : \mathrm { n } \geq 53 \}$

Question 172

Multiple Choice

Decide whether or not the set is closed under addition.
- $\{ \mathrm { n } \in \mathrm { N } : \mathrm { n } \geq 53 \}$

A) Closed
B) Not closed

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