User talk:SergeyLiflandsky

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Also, when you post on talk pages you should sign your name using four tildes (~~~~); that will automatically produce your username and the date. I hope you enjoy editing here and being a Wikipedian! Frood 23:55, 23 July 2015 (UTC)[reply]

Hi there! SergeyLiflandsky, you are invited to The Co-op, a gathering place for editors where you can find mentors to help you build and improve Wikipedia. If you're looking for an editor who can help you out, please join us! I JethroBT (I'm a Co-op mentor) This message was delivered automatically by your robot friend, talk) 17:40, 27 July 2015 (UTC)[reply ]

1. Add four tildes ( ~~~~ ) at the end of your comment; or
2. With the cursor positioned at the end of your comment, click on the signature button ( or ) located above the edit window.

This will automatically insert a signature with your username or IP address and the time you posted the comment. This information is necessary to allow other editors to easily see who wrote what and when.

Thank you. --SineBot (talk) 14:47, 29 September 2015 (UTC)[reply]

Inclusion of proofs on Wikipedia are discouraged, per Wikipedia:WikiProject Mathematics/Proofs. The reasons for possible inclusion include:

1. The proof, itself, is famous.
2. The proof uses an interesting technique (which isn't used in another proof elsewhere in the article).

Most of the proofs you have added are only slightly different from other proofs already in the articles.

Try Wikibooks. — Arthur Rubin (talk) 16:05, 29 September 2015 (UTC)[reply]

See

Hi SergeyLiflandsky, could you take a moment to describe your connection to the @MathPhysicsEngineering YouTube channel you're promoting? ~ ToBeFree (talk) 21:33, 13 December 2022 (UTC)[reply]

• avoid editing or creating articles about yourself, your family, friends, colleagues, company, organization, clients, or competitors;
• propose changes on the talk pages of affected articles (you can use the {{request edit}} template);
• disclose your conflict of interest when discussing affected articles (see Wikipedia:Conflict of interest#How to disclose a COI);
• avoid linking to your organization's website in other articles (see Wikipedia:Spam#External link spamming);
• do your best to comply with Wikipedia's content policies.

In addition, you are required by the Wikimedia Foundation's terms of use to disclose your employer, client, and affiliation with respect to any contribution which forms all or part of work for which you receive, or expect to receive, compensation. See Wikipedia:Paid-contribution disclosure.

Also, editing for the purpose of advertising, publicising, or promoting anyone or anything is not permitted. Thank you. ~ ToBeFree (talk) 21:33, 13 December 2022 (UTC)[reply]