Let n,α∈N,β∈N0, and let p be odd prime number s.t. pβ|n.
How do we prove that pα+β+1|(nk)pkα for every k∈{1,2,…,n−1}?
I have injection f:A→B and I want to get bijection. Can I just resting codomain to f(A)? I know that every function i...
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