Kai F. Wehmeier

Kai F. Wehmeier is the Dean's Professor of Logic & Philosophy of Science and Professor of Language Science at the University of California, Irvine. He serves as Director of the Center for the Advancement of Logic, its Philosophy, History & Applications (C-ALPHA). His primary affiliations are within the Department of Logic & Philosophy of Science at the School of Social Sciences.

Wehmeier’s research focuses on logic, philosophy of language, and the history of analytic philosophy, with special attention to Gottlob Frege and Ludwig Wittgenstein. He explores foundational topics such as identity, quantification, modal logic, and the historical development of logical systems. His work bridges formal semantics, philosophical analysis, and the history of mathematical thought.

Key publications include investigations into Wittgensteinian predicate logic, Frege’s Begriffsschrift, and the relational status of identity. His recent work (2024) addresses compositionality and extensionality in formal systems. He has co-edited volumes on proof-theoretic semantics and contributed to debates on modal operators and cross-world predication.

Wehmeier’s research also encompasses the history of mathematical logic, including studies of Frege’s correspondence with Hilbert and the intellectual context of early 20th-century foundational debates. His interdisciplinary approach connects historical scholarship with contemporary logical analysis, influencing both philosophy and formal science disciplines.