#### Upcoming Talks:

### A Skeptical History of Numbers

Curt McMullen

####
Harvard University

Maria Moors Cabot Professor of Mathematics

Chair, Department of Mathematics

#### Wed, May 1, 5:30pm, Science Center Hall D

Talk for a general audience; no math background required

**Abstract:** Quantum theory, virtual particles, curved space and dark energy all emerged from a critical assessment of the foundations of physics in the 20th century. In the same period, a foundational crisis threatened the edifice of mathematics itself. Focusing on the concept of numbers, this talk will recap some of the great leaps of imagination in the history of mathematical thought, describe the foundational crisis, critique the attempts to rescue certainty,
and assess the current state of affairs.

Francis Su

####
Harvey Mudd University

Professor of Mathematics

Former President of the Mathematical Association of America

#### Wed, Sep. 25, 2019

Talk for a general audience; no math background required

#### Thu, Sep. 26, 2019

Talk aimed at math concentrators