Talk:Molecular orbital theory
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In the section labeled Derivation, I found the following statement: "It is an (unproven) assumption of the variational method that the trial function that minimizes the expectation value gives the best approximation of the exact wave function."
This NOT an unproven assumption, since the variational theorem can be easily proved. Sekhar Talluri 14:29, 12 May 2009 (UTC)