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Reference.org
Regular measure
open-in-new
<p>In <a href="/facts/Mathematics/pxTouaz4">mathematics</a>, a regular measure on a <a href="/facts/Topological_space/v2ut7CbK">topological space</a> is a <a href="/facts/Measure_(mathematics)/yCq7zlI4">measure</a> for which every <a href="/facts/Measurable_set/yCq7zlI4">measurable set</a> can be approximated from above by open measurable sets and from below by compact measurable sets. </p>