Page "Henri Lebesgue" Paragraph 12

During the course of his career, Lebesgue also made forays into the realms of complex analysis and topology.

He also had a disagreement with Borel ( called teilweise heftig ) with regards to effective calculation.

However, these minor forays pale in comparison to his contributions to real analysis ; his contributions to this field had a tremendous impact on the shape of the field today and his methods have become an essential part of modern analysis.

Additionally, he is claimed to be the last of the mathematicians to consider one to be a prime number.