1995
DOI: 10.1016/0020-0255(94)00114-q
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HYPERSOLVER: A graphical tool for commonsense set theory

Abstract: This paper investigates an alternative set theory (due to Aczel) called the Hyperset Theory. Aczel uses a graphical representation for sets and thereby allows the representation of non-well-founded sets. A program, called hypersolver, which can solve systems of equations defined in terms of sets in the universe of this new theory is presented. This may be a useful tool for commonsense reasoning. © 1995

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Cited by 5 publications
(3 citation statements)
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“…Formally, a set of circular (coss-referent and recursive) definitions can be handled rigorously using non-well-founded set theories, see Aczel (1988), Barwise and Etchemendy (1987), and Barwise and Moss (1996). Computationally, circularly defined data sets can be represented, stored and manipulated using appropriate data structures, see Akman and Pakkan (1996), Iordanov (2010), and Pakkan and Akman (1995).…”
Section: Objects Are Tokens For Eigen-solutions: Precision Stabilitymentioning
confidence: 99%
“…Formally, a set of circular (coss-referent and recursive) definitions can be handled rigorously using non-well-founded set theories, see Aczel (1988), Barwise and Etchemendy (1987), and Barwise and Moss (1996). Computationally, circularly defined data sets can be represented, stored and manipulated using appropriate data structures, see Akman and Pakkan (1996), Iordanov (2010), and Pakkan and Akman (1995).…”
Section: Objects Are Tokens For Eigen-solutions: Precision Stabilitymentioning
confidence: 99%
“…The variation in these predictions can be explained by a combination of the level of imprecision in the theory and by properties of the end-user's experiment. For instance, the latter source of variation is influenced by properties of the equipment, including the precision, accuracy, and resolution of measuring devices [16,17], and also error bounds for fundamental constants and calibration factors [18][19][20][21][22][23][24][25][26]. We propose to choose a pragmatic hypothesis in such a way that the imprecision in the end-user's predictions is mostly due to his experimental conditions and not due to the level of imprecision in the theory that he uses.…”
Section: Introductionmentioning
confidence: 99%
“…This technique of solving equations in the universe of hypersets can be useful in modeling information which can be cast in the form of equations (Akman and Pakkan, 1993), e.g., situation theory (Barwise and Perry, 1983), databases, etc. since it allows us to assert the existence of some graphs (the solutions of the equations) without having to depict them with graphs.…”
mentioning
confidence: 99%