Question: Could you explain how to approach this problem on continuity? Thank you. 8 . Ler of be an increasing function on 10, IJ. Prove that
Could you explain how to approach this problem on continuity? Thank you.

8 . Ler of be an increasing function on 10, IJ. Prove that the net of points at which of is not continuous is countable. ( Hinit : Show just that ( = Ii f(x) and RE In fix) exist to GO, 1) x C Ten consider An = (CE(,1) : Re-Ledthe for all no IN . )
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