Hahn Field Representation of A. Robinson's Asymptotic Numbers

Todor Todorov, Robert Wolf

Let ${}^{\ast }\mathbb{R}$ be a nonstandard extension of $\mathbb{R}$ and $\rho$ be a positive infinitesimal in ${}^{\ast }\mathbb{R}$. We show how to create a variety of isomorphisms between A. Robi…