Four Fours/Lemmata/Two Fours/64/Solutions/1

Solution

 * $64 = \paren {\sqrt 4}^{\map \Gamma 4}$

where $\map \Gamma 4$ denotes the Gamma function of $4$.

Also presented as
This is how it appears according to :


 * $64 = \sqrt {4^{\map \Gamma 4} }$