Font test[1YG]

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Math font test: $\Gamma (\zeta )={\int }_0^{\infty }{t}^{\zeta -1}{e}^{-t}dt$
$\forall \epsilon >0,\exists \delta >0,\forall \alpha ,\beta \in ℝ,\Vert \alpha -\beta \Vert \le \delta ⟹\Vert \phi (\alpha )-\phi (\beta )\Vert \le \epsilon$
$L¹,A\times B,A\setminus B,A\cup B,A\cap B,{\bigcup }_i{A}_i,{\bigcap }_i{A}_i,{\sum }_i{\xi }_i,{\prod }_j{\theta }_j$.
bold 1 is $\mathbb{1}$, bold N is $\mathbb{N}$
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From https://stackoverflow.com/a/13535289/5058564

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