Question
Identify whether the given pair consist of equal or equivalent but not equal sets or none :
$\mathrm{C}=\{x: x \in \mathrm{~N}, x+5=6\}$ and $\mathrm{D}=\{x: x \in \mathrm{~W}, x<1\}$.

Answer

$C \leftrightarrow D$

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