[EM] A family of easy-to-explain Condorcet methods

[Markus Schulze]

Dear Daniel,

 > Step 1: Sort candidates according to your favourite rule.
 > Step 2: Pick the bottom two candidates. Remove the pairwise loser.
 > Step 3: Repeat until only 1 candidate is left.
 >
 > Every method in this category is Smith-efficient, so it automatically
 > meets many important rules like Condorcet loser, Mutual Majority,
 > and ISDA.

This proposal doesn't automatically meet ISDA.

Markus Schulze