User talk:Mathdialog
Hi Mathdialog,
Welcome to Wikipedia. You've recently changed the page Kenneth Kunen to say that the subject has died. This kind of change to a biographical article absolutely requires the inclusion of a reliable source for the information. If you have such a source (for example, an obituary, an announcement from UW, etc.) then please feel free to restore you changes and also include the source. If you need help with formatting, you can post on the article talk page (here), or ask at Wikiproject Mathematics (here).