Let Y = {n2: n ∈ N} ⊂ N. Consider f : N → Y as f(n) = n2 Show that f is invertible. Find the inverse of f.
Let Y = {n2: n ∈ N} ⊂ N. Consider f : N → Y as f(n) = n2 Show that f is invertible. Find the inverse of f.
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