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odd permutation

noun, Mathematics
a permutation of a set of n elements, x 1 , x 2 , …, xn, which permutes the product of all differences of the form (xixj), where i is less than j, into the negative of the product.
Compare even permutation.
Origin of odd permutation
1925-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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