Non Euclidean GeometryYou are currentlynot logged in Click here to log in |
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One version of the fifth postulate is that given a line and a point outside it, there is exactly one line through the point parallel with the given line. We therefore get two alternative versions:
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PoincaresDisc | (none) | |||||
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Axiom EuclideanGeometry HyperbolicFunction |
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(none) | Euclid | Function KurtGoedel TrigonometricFunction UnitCircle |
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