Originally published: New York: Holt, Rinehart and Winston, 1945.Thus he suggested indirectly a geometry in which no two lines are parallel and the sum of the angles of a triangle is greater than two right angles. It will be recalled that, ... II, pp. 56I-597. THE DISCOVERY OF NON-EUCLIDEAN GEOMETRY 61.

Title | : | Introduction to Non-Euclidean Geometry |

Author | : | Harold E. Wolfe |

Publisher | : | Courier Corporation - 2012-10-01 |

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