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going through sec. 4.7 (G-Sets)
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UlrikBuchholtz committed Aug 22, 2024
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2 changes: 1 addition & 1 deletion choicefin.tex
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Expand Up @@ -106,7 +106,7 @@ \section{Choice for finite sets\titledagger}
Correspondingly, we need an even stronger version of the axiom of choice,
where the family $P$ is allowed to be arbitrary.
Let $\AC_\infty$ denote this untruncated axiom of choice,
and let $\lAC{X}_\infty$ denote let local version, fixing a set $X$.
and let $\lAC{X}_\infty$ denote the local version, fixing a set $X$.
This is connected to another principle, which is much more constructive,
yet still not true in all models.

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2 changes: 1 addition & 1 deletion circle.tex
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Expand Up @@ -627,7 +627,7 @@ \section{\Coverings}
the other interpretation ``all the preimages are connected''
would simply give us an equivalence (since connected sets are contractible),
and this is \emph{not} what is intended. (Equivalences are \coverings,
but not necessarily connected \coverings and connected \coverings are not neccesarily equivalences.)
but not necessarily connected \coverings and connected \coverings are not necessarily equivalences.)

Likewise for the other qualifications; for instance, in a ``finite \covering'' $f:A\to B$,
all fibers are finite sets, but
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