Charles Seiyo Chihara (July 19, 1932 – February 16, 2020) was an American philosopher specializing in the philosophy of mathematics and metaphysics.
[1] Born to Japanese-American parents in Seattle, Chihara spent part of his youth in an internment camp during World War II.
[1] After graduating from O'Dea High School, he earned a Bachelor of Science degree in mathematics from Seattle University, a Master of Science in mathematics from Purdue University, and a PhD in philosophy from the University of Washington.
[2] For most of his career, Chihara served as a member of the faculty of the Department of Philosophy at University of California, Berkeley.
[1] In the philosophy of mathematics, Chihara is known for his work on nominalism, structuralism, and the liar paradox.