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Book IX

With pictures in Java by David Joyce, and the well known comments from Heath's edition at the Perseus collection of Greek classics.

Introductory
David Joyce's Introduction to Book IX

Definitions from Book IX
David Joyce's Euclid
Heath's comments on

Proposition IX.1
David Joyce's Euclid
Heath's comments

Proposition IX.2
David Joyce's Euclid
Heath's comments

Proposition IX.3
David Joyce's Euclid
Heath's comments

Proposition IX.4
David Joyce's Euclid
Heath's comments

Proposition IX.5
David Joyce's Euclid
Heath's comments

Proposition IX.6
David Joyce's Euclid
Heath's comments

Proposition IX.7
David Joyce's Euclid
Heath's comments

Proposition IX.8
David Joyce's Euclid
Heath's comments

Proposition IX.9
David Joyce's Euclid
Heath's comments

Proposition IX.10
David Joyce's Euclid
Heath's comments

Proposition IX.11
David Joyce's Euclid
Heath's comments

Proposition IX.12
David Joyce's Euclid
Heath's comments

Proposition IX.13
David Joyce's Euclid
Heath's comments

Proposition IX.14
David Joyce's Euclid
Heath's comments

Proposition IX.15
David Joyce's Euclid
Heath's comments

Proposition IX.16
David Joyce's Euclid
Heath's comments

Proposition IX.17
David Joyce's Euclid
Heath's comments

Proposition IX.18
David Joyce's Euclid
Heath's comments

Proposition IX.19
David Joyce's Euclid
Heath's comments

Proposition IX.20
David Joyce's Euclid
Heath's comments

Proposition IX.21
David Joyce's Euclid
Heath's comments

Proposition IX.22
David Joyce's Euclid
Heath's comments

Proposition IX.23
David Joyce's Euclid
Heath's comments

Proposition IX.24
David Joyce's Euclid
Heath's comments

Proposition IX.25
David Joyce's Euclid
Heath's comments

Proposition IX.26
David Joyce's Euclid
Heath's comments

Proposition IX.27
David Joyce's Euclid
Heath's comments

Proposition IX.28
David Joyce's Euclid
Heath's comments

Proposition IX.29
David Joyce's Euclid
Heath's comments

Proposition IX.30
David Joyce's Euclid
Heath's comments

Proposition IX.31
David Joyce's Euclid
Heath's comments

Proposition IX.32
David Joyce's Euclid
Heath's comments

Proposition IX.33
David Joyce's Euclid
Heath's comments

Proposition IX.34
David Joyce's Euclid
Heath's comments

Proposition IX.35
David Joyce's Euclid
Heath's comments

Proposition IX.36
David Joyce's Euclid
Heath's comments