Paul Richard Halmos (Hungarian: Halmos Pál; 3 March 3 1916 – 2 October 2006) was a Hungarian-born American mathematician and probabilist who made fundamental...

right aligned). It is sometimes called a "Halmos finality symbol" or "halmos" after the mathematician Paul Halmos, who first used it in a mathematical context...

symbol was later called the tombstone, the Halmos symbol, or even a halmos by mathematicians. Often the Halmos symbol is drawn on chalkboard to signal the...

Polyadic algebras (more recently called Halmos algebras) are algebraic structures introduced by Paul Halmos. They are related to first-order logic analogous...

the mathematical topic. Naive Set Theory is a mathematics textbook by Paul Halmos providing an undergraduate introduction to set theory. Originally published...

Paul Halmos, and Alain Connes. These criticisms are analyzed below. The evaluation of nonstandard analysis in the literature has varied greatly. Paul...

Glimm, Impagliazzo & Singer (1990), p. 39. Halmos 1958, p. 86. Halmos 1958, p. 87. Pietsch 2007, p. 168. Halmos 1958, p. 88. Dieudonné 2008. Ionescu-Tulcea...

Martians. Individuals named as members of The Martians group include: Paul Erdős Paul Halmos Theodore von Kármán John G. Kemeny John von Neumann George Pólya...

logic. Paul Halmos discovered monadic Boolean algebras while working on polyadic algebras; Halmos (1962) reprints the relevant papers. Halmos and Givant...

the National Bureau of Standards. He completed his Ph.D. in 1954 under Paul Halmos; his thesis was titled Spectral Theory for Operations on Banach Spaces...

careful analysis of the data acquired in this pursuit." As expressed by Paul Halmos: "Mathematics is not a deductive science—that's a cliché. When you try...

(1914–1980), American labor leader Paul Halley (born 1952), English keyboardist, vocalist and composer Paul Halmos (1916–2006), Hungarian-born American...

Grimmett (born 1950) Alice Guionnet (born 1969) Ian Hacking (1936–2023) Paul Halmos (1916–2006) Joseph Halpern (born 1953) David Heath (c.1943–2011) Wassily...

existence (via the axiom of choice), not an explicit example. According to Paul Halmos, a subset of a locally compact Hausdorff topological space is called...

prize, endowed in 2005 by Paul and Virginia Halmos, is named in honor of AMS President Joseph L. Doob, who was Paul Halmos's doctoral advisor in the department...

Journal of Mathematics. Some of the ideas used in Halmos' proof reappeared many years later in Halmos' own work on quasi-triangular operators. Other results...

Cardinals (1974). ISBN 0 444 10535 2. Halmos 1974, p. 9. Halmos 1974, p. 10. Jech 2002, p. 4. Halmos 1974, Chapter 2. Halmos 1974, See discussion around Russell's...

Mathematics from the University of Michigan; his Ph.D. thesis advisor was Paul Halmos. His thesis, "On lattices of invariant subspaces" concerns operators...

support of the Halmos family for the awards. Halmos himself received the award in 1971 and 1977. The recipients of the Paul R. Halmos – Lester R. Ford...

Surprised?, Fernando Q. Gouvêa, American Mathematical Monthly, March 2011. Paul Halmos, Naive set theory. Princeton, NJ: D. Van Nostrand Company, 1960. Reprinted...

Axiom des Unendlichen p. 266f. "Metamath Proof Explorer". Metamath. Paul Halmos (1960) Naive Set Theory. Princeton, NJ: D. Van Nostrand Company. Reprinted...

2024-06-10. Burgess, John, 2005. Fixing Frege. Princeton Univ. Press. Paul Halmos, Naive set theory. Princeton, NJ: D. Van Nostrand Company, 1960. Reprinted...

Kelley's 1955 book General Topology. Its invention is often credited to Paul Halmos, who wrote "I invented 'iff,' for 'if and only if'—but I could never...

mathematicians disapprove of this notation. In his 1985 autobiography, Paul Halmos criticized what he considered the "childish ln notation", which he said...

mathematicians such as George A. Wentworth, Bertrand Russell, Nicolas Bourbaki, Paul Halmos, Stephen Cole Kleene, and John Horton Conway have preferred to include...

will need an adjustment instead. Extensionality for a general overview. Paul Halmos, Naive set theory. Princeton, NJ: D. Van Nostrand Company, 1960. Reprinted...

a rectangle, such as □ or ∎, known as a "tombstone" or "halmos" after its eponym Paul Halmos. Often, "which was to be shown" is verbally stated when writing...

unconfirmed moons 2 (algebra), the two-element Boolean algebra, for which Paul Halmos introduced the bolded "2" notation ②, the Stenhaus-Moser number also...

While chairman, Stone hired several notable mathematicians including Paul Halmos, André Weil, Saunders Mac Lane, Antoni Zygmund, and Shiing-Shen Chern...

in 1933, formalized it using the Radon–Nikodym theorem. In works of Paul Halmos and Joseph L. Doob from 1953, conditional expectation was generalized...