EDB — 0Q3

Exercises

1. [0Q3] Prerequisites:[0H7]↺↻.Let \(A⊆ X\) where \((X,d)\) is a metric space, we have that \(x∈ ∂ A\) if and only if there exists \((y_ n)⊆ A\) and \((z_ n)⊆ A^ c\) sequences such that \(y_ n→ x\) and \(z_ n→ x\).

   Solution 1

   [0Q4]↺↻