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Reversal symmetry is a voting system criterion which requires that if candidate A is the unique winner, and each voter's individual preferences are inverted, then A must not be elected.[1] Methods that satisfy reversal symmetry include Borda count, ranked pairs, Kemeny–Young method, and Schulze method. Methods that fail include Bucklin voting, instant-runoff voting and Condorcet methods that fail the Condorcet loser criterion such as Minimax.
For cardinal voting systems which can be meaningfully reversed, approval voting and range voting satisfy the criterion.
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Reversalsymmetry is a voting system criterion which requires that if candidate A is the unique winner, and each voter's individual preferences are inverted...
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Time symmetry may refer to: Time translation symmetry Time reversalsymmetry This disambiguation page lists articles associated with the title Time symmetry...
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