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The double bracket notation is pronounced " n multichoose k". The doubled parentheses remind us that we may include elements more than once.© BrainMass Inc. brainmass.com March 4, 2021, 6:02 pm ad1c9bdddf
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Provide common sense explanation to the proof.
Let n, k be positive integers.
A proof involving "N multichoose K" is provided. The solution is detailed and well presented.