User contributions for 123.17.142.123

4 March 2014

• 16:1616:16, 4 March 2014 diff hist +48 Mathematical induction Add some spaces between mathematic symbols

3 March 2014

• 12:0812:08, 3 March 2014 diff hist 0 3-manifold uncapitalize "t" in "3-torus"