The Ulterro is equal to 100![#→#] in Extensible ! Notation. The term was coined by Yabuszko[1].
Approximations in other notations
| Notation | Approximation |
|---|---|
| BEAF | \(X\ \& \ X\ \& \ 100\) |
| Bird's Array Notation | \(\{100,100[1[1\neg1,2]2]2\}\) |
| Hyperfactorial Array Notation | \(100![1(98)2]\) |
| Fast-growing hierarchy | \(f_{\theta(\Omega^\omega)}(100)\) |
| Slow-growing hierarchy | \(g_{\theta(\Omega_2^\omega)}(100)\) |
Sources
- ↑ Yabuszko, Extensible ! Notation