Bernard Bolzano (1781–1848) was a Czech philosopher, mathematician, and logician, known for his contributions to the foundations of mathematics and for his work in various fields, including ethics and theology. He made significant advances in the understanding of real numbers and continuity, and is credited with early developments in the concept of limits and the notion of a function.
Articles by others on the same topic
Portrait of Bernard Bolzano
. Historical portrait; image and provenance are available on Wikimedia Commons. Source.