[EM] Range voting fails IIA?

[Warren Smith]

Cary:
"Both CRV and Wikipedia claim that range voting meets the Independence
of Irrelevant Alternatives (IIA) criterion, but neither gives much
justification for such claims."

Benham:
Range votign supporters like to move the goalposts around.

Actually:
  http://www.rangevoting.org/ArrowThm.html
says RV passes the definition of IIA given in the Webb tutorial,
but notes:

Actually, in his tutorial, Webb did not very carefully state a precise and complete statement of Arrow's theorem – he "dumbed it down" for a wide audience. If he had done so, then Range Voting would (with some theorem versions) disobey criterion #3 – but even in those versions, a system related to range, called "honest utility voting," still would "impossibly" obey all three Arrow criteria.

Warren D Smith
http://rangevoting.org