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A textbook on informal homotopy type theory
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HoTT/book Issues
Exercise 11.6 seems to need WLPO not LPO
Updated
25 days ago
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3
max and sup
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a month ago
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9
cardinal numbers in the introduction
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2 months ago
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5
real numbers in the introduction
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2 months ago
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7
Switch to using truncated logic as default in the book
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2 months ago
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2
proof-theoretic consistency in the introduction
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2 months ago
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6
Indexing of maps in fiber and exact sequences
Closed
6 months ago
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3
Nightly builds pdfs are dead links
Closed
8 months ago
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8
Exercise 7.3 could be made stronger
Updated
8 months ago
Lemma 8.5.9 is missing a label
Updated
a year ago
Corollary 8.8.5
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a year ago
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4
Errata PDF unreadable
Closed
a year ago
Provided Hashes in errata.pdf Not Found
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a year ago
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2
CI problem: "dubious ownership"
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a year ago
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1
Typo in proof of commutativity of cardinal multiplication
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a year ago
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2
Equivalence of path induction and based path induction
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a year ago
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7
Clarification of the proof of Lemma 6.2.9. (universal property of the circle)
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a year ago
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10
Use parentheses in the proof of Lemma 2.1.4(iii)
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a year ago
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3
parenthesis missing on page 67
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a year ago
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6
Code of conduct
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2 years ago
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23
Cumulativity of the universe hierarchy
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2 years ago
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4
Typos in proof of Lemma 10.3.12
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2 years ago
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5
Augment assumptions for Thm 5.4.4, 5.4.5, and 5.4.7
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2 years ago
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19
identity type usage
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2 years ago
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19
Rules for universes in Appendix A.2 are incomplete
Closed
2 years ago
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3
Assumption that `A // R` is a set
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2 years ago
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4
The Cauchy real numbers satisfy the fundamental theorem of algebra and are not Cauchy complete in the rest of the constructive mathematics literature
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2 years ago
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9
What qualifies as a "constructor" and the omitted $\equiv$ rules in appendix A.2
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2 years ago
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3
Corollary 2.4.4. (use of naturality and whiskering)
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2 years ago
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9
Deducing propositional uniqueness for product types
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2 years ago
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1
"term" vs "element"
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2 years ago
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2
Lemma 2.1.2. Concatenation of paths
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2 years ago
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4
The initial σ-frame in Section 11.2
Updated
2 years ago
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1
Broken links on https://homotopytypetheory.org/book/
Closed
2 years ago
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2
Redirects for nightly builds
Closed
2 years ago
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4
errata marking script broken?
Closed
2 years ago
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8
Example 9.1.15: every isomorphism is an identity?
Closed
3 years ago
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3
Minor arguments typo in Definition 1.9.2
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3 years ago
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1
Typo in §2.14
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3 years ago
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1
Equation equality-semigroup-mult not numbered in subsection 2.14.2
Closed
3 years ago
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1
Typo in §2.9?
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3 years ago
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1
Mismached functions in page 133 theorem 4.2.3
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3 years ago
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1
Abbrev used before introduced
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3 years ago
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6
Page numbers and running heads location
Updated
3 years ago
Exercises solutions should be part of the book
Updated
3 years ago
eliminate ModuleMap in favor of Matrix
Closed
3 years ago
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1
Lemma 2.3.4 (Dependent map). contructing apd_f should be (Dependent path)?
Closed
3 years ago
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2
Set-truncation in Lemma 10.3.22
Closed
4 years ago
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8
Incorrect justification in the final line of 4.8.1
Updated
4 years ago
Typo in A.2.11?
Closed
4 years ago
Comments count
1
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