{0,±1,±2…}\{0, \pm 1, \pm 2 \ldots\}{0,±1,±2…}
{x∈N:x2>16\left\{x \in \mathbb{N}: 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>2}\{x: x \in \mathbb{R}, x<1 \Rightarrow x>2\}{x:x∈R,x<1⇒x>2}
