Geometry Without Axioms; Or the First Book of Euclid's Elements: With Alterations and Familiar (Classic Reprint)
(In the preceding Editions endeavour had been made to get ...)
In the preceding Editions endeavour had been made to get rid of A xioms, and particularly to establish the Theory of Parallel Lines without recourse to any principle not grounded on previous demonstration. On showing the results to some of the leading mathematicians at Cambridge, they replied by the remark, that they had always felt something to be more urgently wanted for the emendation of Geometry, which was, information on the nature and construction of the straight line and plane. It had been stated, about the time when the circumstances were engrossing the attention of the public, thatN apoleon on his voyage fromE gypt amused himself and staff with circular geometry. What circular geometry might be, could only be collected from the tradition, that the problem given by the future Emperor was to divide the circumference of a circle into four equal parts by means of circles only. But this sufficed to indicate, that the idea which had passed through the mind of that eminent practical geometer, was that in the properties of the circle, or still more probably of the sphere, might be discovered the elements of geometrical organization.
(Typographical errors above are due to OCR software and don't occur in the book.)
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