Googology Wiki
Advertisement
Googology Wiki

View full site to see MathJax equation

The grand Berlin Wall is equal to E100#^^##(Berlin Wall) = E100#^^#>#^^#>#^^#>...>#^^#>#^^#100 (Berlin Wall #^^#'s) in Extended Cascading-E Notation.[1] The term was coined by Sbiis Saibian.

Approximations in other notations[]

Notation Approximation
BEAF \(X \uparrow\uparrow X \uparrow 2\ \&\ \text{Berlin Wall}\)
Bird's array notation \(\{100,\text{Berlin Wall} [1 \backslash 1 \backslash 2] 2\}\)
Hyperfactorial array notation \((100,000,000![1,1,1,1,1,2])![1,1,1,1,1,2]\)
Fast-growing hierarchy \(f_{\zeta_0}(f_{\zeta_0}(99,999,999))\)
Hardy hierarchy \(H_{\zeta_0 2}(100,000,000)\)
Slow-growing hierarchy \(g_{\vartheta(\zeta_{\Omega+1})}(g_{\vartheta(\zeta_{\Omega+1})}(100,000,000))\)

Sources[]

  1. Saibian, Sbiis. 4.3.6 - Forging Extended Cascading-E Numbers Part I. Retrieved 2014-11-09.
Advertisement