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congruence (ˈkɒŋɡrʊəns Pronunciation for congruence or congruency (ˈkɒŋɡrʊənsɪ Pronunciation for congruency



  1. the quality or state of corresponding, agreeing, or being congruent
  2. (mathematics) the relationship between two integers, x and y, such that their difference, with respect to another positive integer called the modulus, n, is a multiple of the modulus. Usually written xy (mod n), as in 2511 ( mod 7)


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