Elements (Math Lair)

If you're looking for a brief summary of the Elements, see the page about Euclid.

Several of the proofs given in Euclid's Elements are available on the Math Lair. They are:

**Elements on the Math Lair**
Book I	Book II	Book IX
Definitions, Postulates, and Common Notions	Definitions	Proposition 20
Proposition 1, Proposition 3,	Proposition 14	Proposition 36
Proposition 5, Proposition 6,
Proposition 29, Proposition 47