Publisher's Synopsis
Excerpt from Euclid's Parallel Postulate: Its Nature, Validity, and Place in Geometrical Systems: Thesis Presented to the Philosophical Faculty of Yale University for the Degree of Doctor of Philosophy
I have included in the bibliography such works as are mentioned in the body of the thesis, and have not aimed at making a complete list. More complete biographies of Hyperspace and non Euclidean Geometry are those of Halsted and Bon ola, which I have mentioned in my list.
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