I seem to be really confused with the counting system in Arrow's theorem. Can I have a simple explanation how they determine the outcome? I can't determine the outcome using rules from my notes. It says the roles are 1) If all vote the same that would be the outcome. 2) the ranking of A over B doesn't depend on other candidates and it depends how they are ranked compared to each other. But then what if 1/2 of the votes put A over B and the other half B over A?
What is the algorithm that gives you the out come?
By way of example: Suppose that we have three candidates A B C and two voters. So we get two votes ABC and BAC what's the outcome?