Errata `Topology and groupoids' First printing

Not surprisingly, there are a few corrections, and this list will be updated periodically.

July 2012: p.379, Ex 9: "define a factor" should be "define a functor"

February, 2011: I have found that the bibliography has a wrong ordering of the entries, so I have compiled a new version with the correct order, which may be downloaded as pdf file here.

Misprints in the first April 3, 2006, printing, corrected in the May 17, 2006 printing

p.ii replace `informtation' by `information'

p. viii l.16 replace `nations' by `notions'

p.xii l.14 replace `mew section' by `new sections'

p.xxi diagram and the following paragraph: \mathbb I should be I

p.157 l.-9 Replace `homeomorphism' by `homomorphism'.

p.309 l.3 The first reference should be to J.P. May `A concise course in algebraic topology', Chicago University Press, revised version downloadable from Peter May's web page.

l.4 [Bro73] should be [Bro70]

p.311 l.11 omit one of the `between'

p.312 l.14 replace `form' by `from'

l.10 replace `rom' by `from'

p.333 In 8.4.1, it is necessary to assume C is totally disconnected, so that in what follows we do not need y and in the formulae in the statement and proof we replace y by x. This makes it quite clear that in the proof of the Corollary, ρ does preserve, or if you like, kill, the relations.

l.-9 replace `section' by `chapter'.

p.336 l.8 Insert `form' after `normal'.

p.393 l.9 replace [Bro73] by [Bro87].

p.423 Exercise 1. Replace the final `G' by `N'.

Misprints still found in the May 17, 2006, printing

p.14 Exercise 1.3.2 The codomain of the function should be [0,2].

p.104 Exercise 3(iii) should read x²y² = 1, not   x²y² = 0.

Chapter 9. p.342, 343: The term `0-identification map' should be replaced by `universal morphism'.

p.354,  356, 357 references to 9.1.9 (Corollary) should be to 8.4.2 (Corollary)

The above are corrected in the May 21, 2007, printing by Bookforce.

Misprint found October 12, 2008

p.392 10.6.4 (Corollary 1) Replace H(x)/C by G(px)/C

Misprint found July 30, 2009

p. 417, l.6 replace φ^* p = φ by φ^* p_* = φ

Mistakes found September, 2011

p. 231 The definition of constant homotopy should be that F(x,ι) is an identity for all objects x of C.

p. 371 l.-11 , -8 Replace second `=' by `-'.

p.497 The symbols for the unit interval groupoid for p. 217, 233 should be I.