Critique of the Fairvote analysis that compares Instant Runoff and Condorcet methods

Summary: A verbatim copy of the material posted by Fairvote on why Instant Runoff (which they call Ranked Choice Voting, or RCV) is inferior to a Condorcet method, interlineated however with my analysis of all the errors, which when corrected reverse the Fairvote conclusion.

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Benham, a Condorcet method, compared to Instant Runoff, has for 3 candidates strictly fewer opportunities for tactical voting