User contributions for 138.251.43.53

11 December 2024

• 15:1915:19, 11 December 2024 diff hist +21,168 N Vizing's theorem Undid revision 1262442796 by 95.166.53.152 (talk). The sufficiency direction is not required for the proof, so it disrupts the flow unnecessarily. It is also not cited and original research, which violates Wikipedia's policies. current