User contributions for 109.193.148.7
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27 February 2014
- 16:3516:35, 27 February 2014 diff hist +37 Legendre's three-square theorem →See also: Added reference to Lagrange
12 February 2014
- 15:1315:13, 12 February 2014 diff hist +35 Beltrami identity Added reference to the mathematician Eugenio Beltrami.