[EM] Symmetric ICT reformulation and exploration

[Forest Simmons]

You wrote in part ...

>Another advantage that it has over 3-Slot ICT is that 3-Slot MDDTR has a
much >simpler definition:

>The winner is the most favorite candidate who isn't majority-beaten.

Three slot ICT could be defined in the same way;

Elect the most favorite candidate who isn't strongly beaten.

Neither definition tells what to do when every candidate is beaten
(majority beaten or strongly beaten, respectively).  But that is just a
detail of the definition that doesn't have to be mentioned immediately.

Here's a more complete definition that works in both cases:

Eliminate all candidates that are {majority, strongly} beaten unless that
would eliminate all candidates.  Elect the most favorite among the
remaining.

So ordinary ICT and MDDTR are equally easy to define.  It's a matter of
which has the best properties.
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