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548
Open
Frederik Wellmann
A. MS.
MATHEMATICS (MS 1-278)
Published, in part, as 8.97-99. Unpublished (pp. 3-8). Denial of either the first or second of the two "natural propositions," noted in that part of manuscript which was published, leads to a non-Euclidean geometry. Both of the corresponding kinds of non-Euclidean geometry are intelligible, and a consideration of plane geometry will suffice to show this.
Geometry, Euclidean (nonEuclidean), Mathematics
pp. 1-8
u
117
G-undated-7
MATHEMATICS / ANALYTIC GEOMETRY
yes
