15 Feb
2016
15 Feb
'16
2:40 p.m.
See proof #7 here: http://www.cut-the-knot.org/pythagoras/
On Feb 15, 2016, at 12:49 PM, Michael Greenwald <mbgreen@seas.upenn.edu> wrote:
I'm very sure I've seen this proof in either Polya "How to Solve it", or "Induction and Analogy in Mathematics".