As a successful Dutch mathematician, I also received honorary doctorate degrees from Cambridge and Oslo.
A leader in the area of mathematical philosophy, I challenged other mathematicians to rethink all of the mathematics they knew (or created) and how they knew it was true.
I was a prioneer in the new field of topology, the theory of aggregates, and the theory of functions.
My eponym is called the fixedpoint theorem, which basically states that when a cup of coffee is stirred, there exists a point on the surface that is not moving.
As a mathematical philosopher, I rejected the classical use of deductive reasoning and created the "intuitive" school of mathematical thought to "handle" the idea of the infinite.
Answer:
Luitzen Egbertus Brouwer (1881  1966)
