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Halmos JUST WRITTEN FOR YOU

/ˈhɑːlmoʊs/ · Hal·mos
noun
  1. A Hungarian family name, most famously associated with the 20th‑century mathematician Paul Halmos. Paul Halmos made lasting contributions to functional analysis and wrote the classic text *I Want to Be a Mathematician*.
  2. Any individual bearing the surname Halmos. The conference featured a talk by Dr. Eva Halmos on probability theory.
Did you know? Paul Halmos was known for his witty one‑sentence proofs, such as the famous “Proof that the square root of 2 is irrational” that fits on a single line of text.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 14, 2026