Analytic studies on the theory of parallel lines
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Publication:1561127
zbMath04.0244.01MaRDI QIDQ1561127
Publication date: 1871
circleconicstrigonometryparallel linestangentnon-euclidean geometry11th Euclidean axiomsum of the angles of a triangle
Hyperbolic and elliptic geometries (general) and generalizations (51M10) Polyhedra and polytopes; regular figures, division of spaces (51M20) Exponential and trigonometric functions (33B10)
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