User contributions
- 03:43, 2 August 2012 (diff | hist) . . (+1) . . m Introduction
- 03:41, 2 August 2012 (diff | hist) . . (-1) . . Introduction (An erroneous 'an' was changed to an)
- 03:28, 2 August 2012 (diff | hist) . . (-13) . . m Lazy evaluation (Minor corrections of grammar and idioms for more "natural" English)