Mathematics - Discrete Structures
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I need to know how to get the number of possible onto functions (as opposed to the number of one-to-one functions) in between sets A and B:
A: {1, 2, 3, 4, 5}
B: {a, b, c}.
Please help if you can.
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Find the number of possible onto (surjective) functions (as opposed to the number of one-to-one functions) in between sets A and B:
A: {1, 2, 3, 4, 5}
B: {a, b, c}.
Let A have m elements, B have n elements and n m.
Let ...
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