User talk:66.235.8.63

Hello, I'm David Eppstein. I wanted to let you know that one or more of your recent contributions&#32;to NP-completeness have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Teahouse. Thanks. In particular, note that "provably" is a valid English word and is specifically marked in that article as not being a typo, a marking you apparently ignored in changing it to a different word with a different meaning. —David Eppstein (talk) 21:49, 27 June 2021 (UTC)