Bernard Bolzano (1789-1848) was a Bohemian mathematician, logician, and philosopher.

In his lifetime he was renowned perhaps mainly for his *Wissenschaftslehre* which puts forth an encompassing theory of science. In mathematics, much of his work became well known only after his death, but he can be regarded as an early proponent of epsilontic analysis and the introduction of rigor in analysis, as for example in the result known as the Bolzano-Weierstrass theorem? (q.v.).

Collected works are available at

- Bolzano collection at the Czech Digital Mathematics Library

For biographical and other detail, see

Last revised on September 18, 2021 at 11:31:07. See the history of this page for a list of all contributions to it.