Doesn't "continuous" make all the difference here? AC doesn't contain a comparab... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		alexey-salmin 5 months ago \| parent \| context \| favorite \| on: 100 years of Zermelo's axiom of choice: What was t... Doesn't "continuous" make all the difference here? AC doesn't contain a comparable limitation, so the analogy doesn't work that week.

pfortuny 5 months ago | [–]

Yes, but the parent comment is trying to say "imagine the world would only be made up of topological spaces and continuous maps". Then the retraction principle would not hold.

gsf_emergency 5 months ago | [–]

Careful here, you might wake up the diabol (of pure algebra)

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact