User talk:Erlendd

Welcome!

Hello,, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few good links for newcomers: I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~&#126;); this will automatically produce your name and the date. If you need help, check out Questions, ask me on my talk page, or place  on your talk page and someone will show up shortly to answer your questions. Again, welcome! Oleg Alexandrov (talk) 03:53, 29 March 2006 (UTC)
 * The five pillars of Wikipedia
 * How to edit a page
 * Help pages
 * Tutorial
 * How to write a great article
 * Manual of Style

Fundamental lemma of calculus of variations
I removed your proof at that article, as it is wrong. To be correct, the function $$h$$ needs to be chosen in a very carefull manner, not any function would do.

The proof is fixable, but I am not sure it is worth the trouble. Wikipedia being an encyclopedia, proofs are not so much encouraged. Cheers, Oleg Alexandrov (talk) 03:53, 29 March 2006 (UTC)