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Fungrim entry: 81aeba

Symbol: Factorial n!n ! Factorial
Domain Codomain
nZ0n \in \mathbb{Z}_{\ge 0} n!Z1n ! \in \mathbb{Z}_{\ge 1}
Table data: (P,Q)\left(P, Q\right) such that (P)        (Q)\left(P\right) \;\implies\; \left(Q\right)
Fungrim symbol Notation Short description
Factorialn!n ! Factorial
ZZGreaterEqualZn\mathbb{Z}_{\ge n} Integers greater than or equal to n
Source code for this entry:
    SymbolDefinition(Factorial, Factorial(n), "Factorial"),
    Table(TableRelation(Tuple(P, Q), Implies(P, Q)), TableHeadings(Description("Domain"), Description("Codomain")), List(Tuple(Element(n, ZZGreaterEqual(0)), Element(Factorial(n), ZZGreaterEqual(1))))))

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

2021-03-15 19:12:00.328586 UTC