Definitions:
| Fungrim symbol | Notation | Short description |
|---|---|---|
| ZZGreaterEqual | Integers greater than or equal to n | |
| BellNumber | Bell number |
Source code for this entry:
Entry(ID("16fe51"),
Implies(Element(n, ZZGreaterEqual(0)), Element(BellNumber(n), ZZGreaterEqual(1))),
Variables(n))