# state whether true or false? {a} belongs to { a,b,c} pls explain your answer.

{a} is the set which contains one element a.
but the set {a,b,c} has three elements a,b and c.
$a\in \left\{a,b,c\right\}$
but $\left\{a\right\}\notin \left\{a,b,c\right\}$

hope this helps you

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