Talk:IRV Prime: Difference between revisions

== Example of LNH failure ==

Consider the following votes:

102 A

101 B

100 C

5 A>B>C

5 B>C>A

5 C>A>B

A wins IRV (after C is eliminated)

The Schwarz set is {ABC}

A wins AB. C wins AC. So, WinnersPrime is {AC}.

C wins {AC}

Thus, C is overall winner.

....

Now, some C voters add a later preference:

102 A

101 B

100 C>B

5 A>B>C

5 B>C>A

5 C>A>B

B wins IRV (after C is eliminated).

The Schwarz set is B.

So B wins overall.