Skip to content

Graduate · Real Analysis

The real numbers & completeness

110 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

  1. Warm-up

    By the Archimedean property, the set of natural numbers nn satisfying 1n<415\dfrac{1}{n} < \dfrac{4}{15} is nonempty. Compute the least such natural number nn.

  2. Warm-up

    By the Archimedean property, the set of natural numbers nn satisfying 1n<114\dfrac{1}{n} < \dfrac{1}{14} is nonempty. Compute the least such natural number nn.

  3. Warm-up

    By the Archimedean property, the set of natural numbers nn satisfying 1n<119\dfrac{1}{n} < \dfrac{1}{19} is nonempty. Compute the least such natural number nn.

Problems shown under their original terms: Generated (template, solver-computed).

Practice this free, right now

Unlimited math practice is on the free plan — no card, no trial clock.

See every Real Analysis skill for graduate