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Icke-euklidisk geometri
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CHAPTER I FOUNDATION FOR METRICAL GEOMETRY IN A LIMITED REGIONCHAPTER II CONGRUENT TRANSFORMATIONSCHAPTER III THE THREE HYPOTHESESCHAPTER IV THE INTRODUCTION OF TRIGONOMETRIC …
1. INTRODUCTION 2. PANGEOMETRY Propositions Depending Only on the Principle of Superposition Propositions Which Are True for Restricted Figures The Three Hypotheses 3. THE …