Tag Archives: axiom of choice

Homotopically Reduced Paths (Part II)

Understanding this post requires reading Part I where I explain what reduced paths are and how we might go about proving they exist. In this second part, I’ll go into detail about how to use Zorn’s lemma to identifying a … Continue reading

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Homomorphisms from the earring group to finite groups

One of the the surprising things about the earring group (the fundamental group of the earring space ) is that the group of homomorphisms to the additive group of integers is countable (see this post for details) even though is … Continue reading

Posted in earring group, earring space, Finite groups, Fundamental group, Group homomorphisms, Ultrafilter | Tagged , , , , , , , , , , , , | 1 Comment