Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A meager set is a set contained in the countable union of nowhere dense sets, such as the circumference of a circle in the plane, or finitely or countably many such circumferences.

From Scientific American • Aug. 16, 2021

The leakier tent pairs the the countably many endpoints with the uncountably many irrational points and the uncountably many non-endpoints with the countably many rational points.

From Scientific American • Jun. 20, 2015

For instance: Have we proved that the rational numbers are countably infinite?

From Scientific American • Jan. 23, 2013

Since all our infinities are countably infinite, is there something like an ‘uncountably’ infinite set?

From Scientific American • Jan. 23, 2013

In fact, what if you are so popular that you are accompanied by a countably infinite number of friends?

From Scientific American • Jan. 23, 2013