Let $S$ be a subset of $\mathbb{R}$ that is bounded from both above and below. How does one prove, from the axioms of complete ordered fields, that $S \cap \mathbb{Z}$ is finite?
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Let $S$ be a subset of $\mathbb{R}$ that is bounded from both above and below. How does one prove, from the axioms of complete ordered fields, that $S \cap \mathbb{Z}$ is finite?