User talk:Lachim314

February 2024[edit]

Hello, I'm DVdm. I noticed that you recently removed content from Proof by contrapositive without adequately explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an accurate edit summary. If this was a mistake, don't worry; the removed content has been restored. If you would like to experiment, please use your sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. DVdm (talk) 11:43, 9 February 2024 (UTC)[reply]

Please do not remove content or templates from pages on Wikipedia, as you did at Mathematical proof, without giving a valid reason for the removal in the edit summary. Your content removal does not appear to be constructive and has been reverted. If you only meant to make a test edit, please use your sandbox for that. Thank you. DVdm (talk) 11:44, 9 February 2024 (UTC)[reply]

Note: the proof, as given in Mathematical proof and sourced in Proof by contrapositive is correct. If we don't trust a source, we need to go to the article talk page (talk:Proof by contrapositive) and open a discussion, explaining why the given source is not reliable. - DVdm (talk) 11:48, 9 February 2024 (UTC)[reply]