Yahoo (NSDQ: YHOO) has filed its definitive proxy statement with the SEC, once again urging shareholders to vote for the home team, as opposed to the Icahn slate. Stepping away from the mind-numbing back-and-forth volley of letters, the company addresses shareholders directly, with a short, relatively understated message. Basically it boils the whole thing down to a simple flow chart. Start with the question: Does Microsoft (NSDQ: MSFT) want to buy all of Yahoo? If the answer is yes, then vote for the management slate, because they’re still willing to do a deal at the right price. And if the answer is no… then you can’t vote for Icahn, because he has no plan for what to do. At least in the company’s logic, it doesn’t get much more complicated than that.