The tethrennon is equal to E100#^^#^#9 = E100#^^#########100 in Extended Cascading-E Notation.[1] The term was coined by Sbiis Saibian. Tethrennon is comparable to Bowers' tridecatrix using non-climbing method.
Etymology[]
The name of this number is based on the number tethrathoth and the root "xennon" from "polyxennon". Polyxennon is the name for a 10-dimensional figure and 10-D figures are constructed from multiple 9-D figures (hence the "poly"), so a "xennon" can be considered a 9-dimensional figure.
Approximations in other notations[]
Notation | Approximation |
---|---|
BEAF | \(X \uparrow\uparrow X^{9}\ \&\ 100\) |
Bird's array notation | \(\{100,10 [1 [2 \neg 2] 2] 2\}\) |
Hyperfactorial array notation | \(100![1] w/12\) |
Fast-growing hierarchy | \(f_{\varphi(9,0)}(99)\) |
Hardy hierarchy | \(H_{\varphi(9,0)}(100)\) |
Slow-growing hierarchy | \(g_{\vartheta(\varphi(9,\Omega+1))}(100)\) |
Sources[]
- ↑ Saibian, Sbiis. 4.3.3 - Forging Extended Cascading-E Numbers Part I. Retrieved May 6, 2014.