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TABLEAUX
2009
Springer
14 years 2 days ago
Tableaux for Projection Computation and Knowledge Compilation
Projection computation is a generalization of second-order quantifier elimination, which in turn is closely related to the computation of forgetting and of uniform interpolants. O...
Christoph Wernhard
CORR
2008
Springer
113views Education» more  CORR 2008»
13 years 7 months ago
A Functional Hitchhiker's Guide to Hereditarily Finite Sets, Ackermann Encodings and Pairing Functions
The paper is organized as a self-contained literate Haskell program that implements elements of an executable finite set theory with focus on combinatorial generation and arithmet...
Paul Tarau
TYPES
1994
Springer
13 years 11 months ago
A Concrete Final Coalgebra Theorem for ZF Set Theory
A special final coalgebra theorem, in the style of Aczel's [2], is proved within standard Zermelo-Fraenkel set theory. Aczel's AntiFoundation Axiom is replaced by a varia...
Lawrence C. Paulson
MSCS
2006
93views more  MSCS 2006»
13 years 7 months ago
Uniform regular enumerations
Abstract. In the paper we introduce and study the uniform regular enumerations for arbitrary recursive ordinals. As an application of the technique we obtain a uniform generalizati...
Ivan N. Soskov, Bogomil Kovachev
COCO
1998
Springer
100views Algorithms» more  COCO 1998»
13 years 11 months ago
Uniformly Hard Languages
Ladner [18] showed that there are no minimal recursive sets under polynomial-time reductions. Given any recursive set A, Ladner constructs a set B such that B strictly reduces to ...
Rodney G. Downey, Lance Fortnow