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Geometry Unbound

AuthorKiran S. Kedlaya Entered2006-03-05 12:58:47 by bcrowell
Editedit data record FreedomCopylefted: anyone can read, modify, and sell (disclaimer)
SubjectQ.A - Mathematics. Computer science
This link was reported to be OK by user Ben Crowell on 2006-03-05 12:58:57
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no figures
by Ben Crowell (crowell09 at (change 09 to current year)) on 2009-02-21 16:06:55, review #521

This book for high school students lays out Euclidean geometry starting from analytic geometry.

Traditionally Euclidean geometry is one's first introduction to axiomatic systems and formal proofs. It seems to me that this book doesn't really make its axiomatic foundations very clear. Presumably they consist of some set of logical principles, plus some set of axioms for the real number system. These are all probably fairly standard, but they're completely off stage. Lots of statements are given without proof, e.g., that a unique line passes through any given pair of points.

There are no figures. This is a big problem for a geometry textbook.

Information wants to be free, so make some free information.

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