Re: [HM] Elementary geometry

Robin Hartshorne (robin@math.berkeley.edu)
Tue, 15 Sep 1998 14:04:21 -0700 (PDT)

For the geometrical fallacies, see Mathematical Recreations and Essays
by w.w. Rouse Ball. I have the revised edition by Coxeter, 1940. Chapter
III contains the geometrical fallacies. In particular, a footnote
explains that the well-known proof that every triangle is isosceles
is due to Ball himself.

Robin Hartshorne

PS The book was first published in 1892