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Structure Results for Function Lattices

Published online by Cambridge University Press:  20 November 2018

D. Duffus
Affiliation:
University of Calgary Calgary, Alberta
B. Jónsson
Affiliation:
University of Calgary Calgary, Alberta
I. Rival
Affiliation:
Vanderbilt University Nashville, Tennessee
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For partially ordered sets X and F let Yx denote the set of all order-preserving maps of X to Y partially ordered by fg if and only if f(x)g (x) for each xX [1; 4; 6]. If X is unordered then Yx is the usual direct product of partially ordered sets, while if both X and Y are finite unordered sets then Yx is the commonplace exponent of cardinal numbers. This generalized exponentiation has an important vindication especially for those partially ordered sets that are lattices.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1978

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