User blog comment:Wythagoras/FGH of Array Notations/@comment-5029411-20130707162841/@comment-5150073-20130709101608

From "Beyond Bird's Nested Arrays I":

''the first ordinal beyond the epsilon numbers, zeta-0 is ζ0 = ε(ε(ε(...(ε0)...))) (with ω epsilons)'' There is a error by prof. mathematician.