User contributions
- 00:12, 29 June 2017 (diff | hist) . . (+16) . . 982: Set Theory (→Transcript)
- 00:10, 29 June 2017 (diff | hist) . . (0) . . 1856: Existence Proof (→Explanation)
- 00:07, 29 June 2017 (diff | hist) . . (+15) . . 1856: Existence Proof (→Transcript)