{0,±1,±2,….}\{0, \pm 1, \pm 2, \ldots .\}{0,±1,±2,….}
{x∈N:x2>16\left\{\mathrm{x} \in \mathbb{N}: \mathrm{x}^{2}>16\right.{x∈N:x2>16 এবং x3<400}\left.x^{3}<400\right\}x3<400}
{pq,p,q∈Z\left\{\frac{\mathrm{p}}{\mathrm{q}}, \mathrm{p}, \mathrm{q} \in \mathbb{Z}\right.{qp,p,q∈Z এবং q≠0}q \neq 0\}q=0}
{x:x∈R;x<1\{x: x \in \mathbb{R} ; x<1{x:x∈R;x<1 বা x>2}x>2\}x>2}
