## FANDOM

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The -ag notation is a generalized form of the gag and mag functions by the googologist André Joyce.

Joyce defined $$\mathrm{bag}(n) = \mathrm{mag}^n(n)$$, $$\mathrm{trag}(n) = \mathrm{bag}^n(n)$$, $$\mathrm{quadrag}(n) = \mathrm{trag}^n(n)$$, etc., in accordance to the -illion series.[1] -ag forms a fast iteration hierarchy with $$f_0(n) = A(n, n)$$.

1. Googology