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Mathematics 16 Online
OpenStudy (anonymous):

Let Z5 be the relation of congruence modulo 5. If 1 <= m and n <= 5, We define the product of two classes as [m][n] = [mn] Explain why [3][4] = [2].

OpenStudy (ddcamp):

Congruence modulo x basically means that things loop back every x, making the number line look like this: |dw:1387155914222:dw|

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