Fungrim entry: 03d70f

x \in \mathbb{R} \setminus \{0, -1, \ldots\} \;\implies\; \psi\!\left(x\right) \in \mathbb{R}

TeX:

x \in \mathbb{R} \setminus \{0, -1, \ldots\} \;\implies\; \psi\!\left(x\right) \in \mathbb{R}

Definitions:

Fungrim symbol	Notation	Short description
`RR`	$\mathbb{R}$	Real numbers
`ZZLessEqual`	$\mathbb{Z}_{\le n}$	Integers less than or equal to n
`DigammaFunction`	$\psi\!\left(z\right)$	Digamma function

Source code for this entry:

Entry(ID("03d70f"),
    Formula(Implies(Element(x, SetMinus(RR, ZZLessEqual(0))), Element(DigammaFunction(x), RR))),
    Variables(x))

Topics using this entry

2021-03-15 19:12:00.328586 UTC