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Fungrim entry: 11a56b

φ ⁣(n)=0\varphi\!\left(-n\right) = 0
Assumptions:nZ0n \in \mathbb{Z}_{\ge 0}
TeX:
\varphi\!\left(-n\right) = 0

n \in \mathbb{Z}_{\ge 0}
Definitions:
Fungrim symbol Notation Short description
Totientφ ⁣(n)\varphi\!\left(n\right) Euler totient function
ZZGreaterEqualZn\mathbb{Z}_{\ge n} Integers greater than or equal to n
Source code for this entry:
Entry(ID("11a56b"),
    Formula(Equal(Totient(Neg(n)), 0)),
    Variables(n),
    Assumptions(Element(n, ZZGreaterEqual(0))))

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Copyright (C) Fredrik Johansson and contributors. Fungrim is provided under the MIT license. The source code is on GitHub.

2019-08-17 11:32:46.829430 UTC