# Real Analysis...Open Sets

Prove that the open interval...with a, b being real numbers is an open set.

(See attachment for full question)

https://brainmass.com/math/real-analysis/real-analysis-open-sets-34398

#### Solution Preview

See attached

Problem

Prove that the open interval with a, b real numbers is an open set.

An open interval is an interval that does not include its end points.

The open interval

is denoted (a, b).

Let S be a subset of a metric ...

#### Solution Summary

A real analysis for open sets are examined. The open intervals are proved.

$2.49