Tethrarxi-ogdone is equal to E100#^^^#80 in Extended Cascading-E Notation.[1] The term was coined by Sbiis Saibian.

Approximations

Notation Approximation
Fast-growing hierarchy \(f_{\varphi(3,0)}(80)\)

Sources

  1. Saibian, Sbiis. 4.3.9 - Extended Cascading-E Numbers Part III. Retrieved 2017-01-13.
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