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Epsilon Numbers and Cantor Normal Form

Epsilon Numbers and Cantor Normal Form

Epsilon Numbers and Cantor Normal FormAn epsilon number is a transfinite number which is a fixed point of an exponential map: ωϵ = ϵ. The formalization of the concept is done with use of the tetration of ordinals (Knuth's arrow notation, ↑). Namely, the ordinal indexing of epsilon numbers is …