description: paradox in set theory concerning the set of all sets not containing themselves
14 results
by Mario Livio · 6 Jan 2009 · 315pp · 93,628 words
noted: “More than once in history the discovery of paradox has been the occasion for major reconstruction at the foundation of thought.” Russell’s paradox provided for precisely such an occasion. Russell’s Paradox The person who essentially single-handedly founded the theory of sets was the German mathematician Georg Cantor. Sets, or classes, quickly proved
by James Gleick · 1 Mar 2011 · 855pp · 178,507 words
set this way: S is the set of all sets that are not members of themselves. This version is known as Russell’s paradox. It cannot be dismissed as noise. To eliminate Russell’s paradox Russell took drastic measures. The enabling factor seemed to be the peculiar recursion within the offending statement: the idea of sets
by Stephen Budiansky · 10 May 2021 · 406pp · 108,266 words
is not, then by definition it should be included. But if it is included, that means it is a member of itself, so should not. “Russell’s Paradox,” as it came to be known, echoed paradoxes that had been around since antiquity. The prototype is the Liar’s Paradox, attributed to Epimenides the
by Simon Singh · 1 Jan 1997 · 289pp · 85,315 words
not teaspoons is one of the things that are not teaspoons.’ It was this curious and apparently innocuous observation that led to the catastrophic paradox. Russell’s paradox is often explained using the tale of the meticulous librarian. One day, while wandering between the shelves, the librarian discovers a collection of catalogues. There
by Ray Kurzweil · 31 Dec 1998 · 696pp · 143,736 words
, and/or precision. Robotics The science and technology of designing and manufacturing robots. Robotics combines artificial intelligence and mechanical engineering. ROM See Read-Only Memory. Russell’s Paradox The ambiguity created by the following question: Does a set that is defined as “all sets that do not include themselves” include itself as a
by Iain McGilchrist · 8 Oct 2012
, is like the Achilles paradox: with the loss of unity, the attempt is made to recapture it by summing parts, but necessarily fails. 7. Cf. Russell’s paradox: the set of all sets that are not members of themselves leads inexorably to a contradiction. If such a set were a member of itself
by Ananyo Bhattacharya · 6 Oct 2021 · 476pp · 121,460 words
there are infinitely many. Mathematicians had embraced Cantor’s theory as a powerful tool for manipulating and proving theorems about such sets of infinite size. Russell’s paradox, however, threatened to deal a far more serious blow to set theory than earlier ideological objections. The problem was this: consider a set of objects
by Benjamin C. Pierce · 4 Jan 2002 · 647pp · 43,757 words
quantifiers. The terms "predicative" and "impredicative" originate in logic. Quine (1987) offers a lucid summary of their history: In exchanges with Henri Poincaré...Russell attributed [Russell's] paradox tentatively to what he called a vicious-circle fallacy. The "fallacy" consisted in specifying a class by a membership condition that makes reference directly or
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indirectly to a range of classes one of which is the very class that is being specified. For instance the membership condition behind Russell's Paradox is non-self-membership: x not a member of x. The paradox comes of letting the x of the membership condition be, among other things
by Kees Doets, Jan van Eijck and Jan Eijck · 15 Jan 2004
)? 3. How many pairs of curly braces occur in the expanded notation for ℘ 5 (∅), in the representation where ∅ appears as 0? 4.10 Further Reading Russell’s paradox, as stated by Russell himself, can be found in [Rus67]. A further introduction to sets and set theory is Doets, Van Dalen and De Swart
by David Berlinski · 2 Jan 2005 · 158pp · 49,168 words
attributes of a myth. Cantor’s set theory is inconsistent, mathematicians understanding at once that its fecundity and its inconsistency were deeply linked. There is Russell’s paradox, the best known among a collection of paradoxes and the easiest to state. If sets are subject only to some principle of free construction, then
by Amir D. Aczel · 6 Jan 2015 · 204pp · 60,319 words
by Eric Redmond, Jim Wilson and Jim R. Wilson · 7 May 2012 · 713pp · 93,944 words
by Paul Davies · 31 Jan 2019 · 253pp · 83,473 words
by John D. Barrow · 1 Aug 2005 · 292pp · 88,319 words