# Corrigenda in The Conceptual Roots of Mathematics

### I am chagrined to find how many mistakes there are. I have only myself to blame---I set up the type myself. But if you have a copy, please make these corrections.

page line (- means count from bottom of page)

23 l.-7 maximun' should be maximum'.

36 top in figure 2.2.1 E (on the left) should be F, and F E.

37 in figure 2.2.2, second equation should read AD.AC = AB2

101 l.8 delete righthand bracket after second m

112 in table 4.7.2 in row 3, column Tommy, delete one }, leaving only three }}}.

158 l.3 criticial' should be critical'

161 l.13 last entry should be 1/3'

197 l.13 or' should be of'

219 ll.21,27 delete one of the two left-hand brackets ((

225 l.-1 p.444 should be p.270

235 l.7 iswhy' should be is why'

256 figure 9.10.3 in l.3 right' should be left'

264 l.13 that' should be than'

265, 269, 289 the words Downwards' and Upwards' are the wrong way round, and

a negation sign should be inserted in D3, after the {\it i.e.}

265 ll.-14,13 A5 should read (Ax)(Ay)((Az)(z<x <--> z<y) <--> (Az)(x<z <--> y<z))

289, similarly A5 should read (Ax)(Ay)((Az)(z<<x <--> z<<y) <--> (Az)(x<<z <--> y<<z))

269 in A 10 replace the disjunction, \/ by another conjunction, /\.

274 n.9.l.5 replace Whithead' by Whitehead'.

275 l.8 replace extension' by region', so as to read part of every region of the set'

351 ll.13,15 replace quotifer' by quotifier'

355 l.-10 after well-ordered', replace comma by a dash.

382 l.14 after address' insert me'.

447 l.-6 7.1' should be 7.4ff.'

### Sorry

These are the replacement chapters that I have done:

Chapter 2 Geometry

#### ---o0o---

I have been working on chapters 9 and 10, where much more radical revision was needed, and have now written three chapters that are markedly different from the published version.

Chapter 9A, What is Logic'' partly replaces the old Chapter 13, Chastened Logicism?'', but needs to come before the new

Chapter 9B, Transitive Relations'', which, on the urging of a correspondent, has been substantially re-written.

Chapter 10A , Protopology'', which attempts to replace Whithead's unsuccessful programme of extensive abstraction'', basing topology on mereology together with infinite sequences, by one Boolean Plus'' that bases it on the most minimal extension of mereology.

I need to give a better account of infinity, and re-do the final chapters, but I have other pressing concerns, so publish these three chapters on their own.