Comments (2)
It was also mentioned last week that wherever we define the integers, we
should deduce that they have the inductive property which is used in ch.7.
On Mar 25, 2013 4:04 PM, "Daniel R. Grayson" [email protected]
wrote:
In the computation of pi_1 S^1 it seems the integers are defined as an
inductive type, instead of as a quotient. If the definition of Z as a
quotient in chapter 10 gets moved to an earlier point, as was agreed, then
that should be the definition referred to.I'm referring to this sentence in homotopy.tex: The proof is by induction,
with cases for$0$ ,$1$,$-1$,$n+1$, and$n-1$ .—
Reply to this email directly or view it on GitHubhttps://github.com//issues/23
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Related Issues (20)
- Rules for universes in Appendix A.2 are incomplete HOT 3
- identity type usage HOT 19
- Augment assumptions for Thm 5.4.4, 5.4.5, and 5.4.7 HOT 19
- Typos in proof of Lemma 10.3.12 HOT 5
- Use parentheses in the proof of Lemma 2.1.4(iii) HOT 3
- Cumulativity of the universe hierarchy HOT 4
- CI problem: "dubious ownership" HOT 1
- Provided Hashes in errata.pdf Not Found HOT 2
- Errata PDF unreadable
- Corollary 8.8.5 HOT 4
- Lemma 8.5.9 is missing a label
- Nightly builds pdfs are dead links HOT 8
- Exercise 7.3 could be made stronger
- Indexing of maps in fiber and exact sequences HOT 3
- proof-theoretic consistency in the introduction HOT 6
- cardinal numbers in the introduction HOT 5
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- Switch to using truncated logic as default in the book HOT 2
- max and sup HOT 9
- Exercise 11.6 seems to need WLPO not LPO HOT 3
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