PROOF 140

Prove.

The intermediate value theorem fails in the rationals

On the rational numbers ℚ.

Definition D1

f is continuous at a point p of a set I means that for every ε > 0 there is δ > 0 such that if x ∈ I and |x − p| < δ, then |f(x) − f(p)| < ε.

Proof.

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