The non-standard analysis revival and its weak impact on education.

Monad (non-standard analysis), describes the set of points infinitely close to a given point.

His research has included model theory and non-standard analysis.

The theorem can also be proved using ultrafilters or non-standard analysis.

There are at least three reasons to consider non-standard analysis: historical, pedogogical, and technical.

His review caused a controversy, which is detailed at the article Criticism of non-standard analysis.

Some of the latter are studied in non-standard analysis.

The evaluation of non-standard analysis in the literature has varied greatly.

A more recent attempt at mathematics by formal finesse is non-standard analysis.

My interest in non-standard analysis is that attempts are being made to introduce it into calculus courses.