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(A) Is {5}∈{1,3,5}\{ 5 \} \in \{ 1,3,5 \} ?
(B) Is

Question 9

Essay

(a) Is {5}∈{1,3,5}\{ 5 \} \in \{ 1,3,5 \} ?
(b) Is {5}⊆{1,3,5}\{ 5 \} \subseteq \{ 1,3,5 \} ?
(c) Is {5}∈{{1},{3},{5}}\{ 5 \} \in \{ \{ 1 \} , \{ 3 \} , \{ 5 \} \} ?
(d) Is {5}⊆{{1},{3},{5}}\{ 5 \} \subseteq \{ \{ 1 \} , \{ 3 \} , \{ 5 \} \} ?

Correct Answer:

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(a) No
(b)...

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