How many injective mappings Z7-Z4 are there?

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ivansmirnov032021-06-26 13:37:19

Discrete Math

ivansmirnov03, 2021-06-26 13:37:19

How many injective mappings Z7-Z4 are there?

discrete math assignment

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Wataru, 2021-06-26
@wataru

Count how many elements are in each set. Recall the definition of "injective mapping". Count how many possible display values for the first element, for the second, and so on. Multiply.

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