EDB — 0SB

Exercises

1. [0SB]Prerequisites:[0QR]↺↻. Show that the set \(A⊂ ℝ\) defined by

   \[ A=\{ 0\} ∪ \{ 1/n : n∈ℕ, n≥ 1\} ∪ \{ 1/n+1/m : n,m∈ℕ, n≥ 1, m≥ 1\} \]

   is compact; identify its accumulation points.

   Solution 1

   [0SC]↺↻