The Munich Center for Mathematical Philosophy (MCMP) is organizing the third edition of the Summer School for Widening Participation in Mathematical Philosophy, which will take place from July 20th through 24th, 2026, at LMU in Munich, Germany. This event continues a successful tradition, which began in 2014 with eight editions of the summer school on mathematical philosophy for female students and was expanded in 2024 to other underrepresented groups. The 2026 edition of the summer school is open to women and members of other groups that are under-represented in mathematical philosophy. These groups include under-represented gender identities, races and ethnicities, people with disabilities, people from low income and non-academic family backgrounds. The target level is master students and last year-bachelor students. The school's aim is to encourage students to engage with mathematical and scientific approaches to philosophical problems, and thereby help to redress the under-representation of women and other marginalized groups in mathematical philosophy. It offers the opportunity for study in an informal and interdisciplinary setting, for lively debate, and for the development of a network of students and professors interested in the application of formal methods to philosophy. The 2026 edition of the summer school will feature: * A lecture series by Dunja Šešelja (Ruhr University Bochum) on Social Epistemology of Scientific Disagreements; * A lecture series by Snow Zhang (University of California, Berkeley) on Philosophy of Decision Theory; * An evening lecture by Sabina Leonelli (TU Munich) titled “Philosophy for the Public Good? Interventions in Policy and AI”; * Talks on mathematical philosophy by members of the MCMP; * Talks and discussion concerning diversity and the profession; * Poster presentations by the Summer School’s participants; * As well as social events and opportunities to explore Munich. The organizing committee consists of Cordelia Berz, Johannes Bommes, Nicola Bonatti, John Dougherty, Levin Hornischer, Ina Jäntgen, Arthur Saraiva, Toby C.P. Solomon and Daniel Wimmer. [How to Apply:] We welcome applications from women and members of other under-represented groups (including under-represented gender identities, races and ethnicities, people with disabilities, people from low income and non-academic family backgrounds) who want to specialize in mathematical philosophy. The school’s target level is master students and last year-bachelor students. When: 20–24 July, 2026 Where: in-person, at LMU Munich in Munich, Germany; Participation fee:  The participation fee is 80€. For LMU Munich students: 50€. How to apply:  The application portal will soon be made available on the summer school’s website. Please visit https://www.mathsummer.philosophie.uni-muenchen.de/index.html <https://www.mathsummer.philosophie.uni-muenchen.de/index.html>for more information.