On all numbers great and small (Topological fields of Conway's numbers and their completions)

The proper Class $\bf{No}$ of all Conway's numbers \cite{l3} is considered as a region of investigation. It turns out to be a total ordered Field (i.e., a field whose domain is a proper Class) and this totally, or linear ordered Class, containing the real numbers ${\mathbb R}$ and the ordinal numbers ${\bf On}$. For any subfield $F$ of $\bf{No}$, i.e., $F$ is a set nor proper class, considered with topology induced by a linear ordering on $F$ a completion $\tilde F$ is constructed; in particular...
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