User talk:71.231.124.36

Please use the Edit summary field when you are editing pages especially when you are removing large amounts of text from a page as you recently did with your edits to Topology/Basic Concepts Set Theory‎. In future if it isn't clear why such changes are being made then your edits may be reverted by other editors.--ЗAНИA talk 22:20, 22 December 2012 (UTC)