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» Extension of a theorem of Whitney
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LICS
2008
IEEE
14 years 3 months ago
Reachability Games and Game Semantics: Comparing Nondeterministic Programs
We investigate the notions of may- and mustapproximation in Erratic Idealized Algol (a nondeterministic extension of Idealized Algol), and give explicit characterizations of both ...
Andrzej S. Murawski
ICALP
2007
Springer
14 years 3 months ago
Universal Algebra and Hardness Results for Constraint Satisfaction Problems
We present algebraic conditions on constraint languages Γ that ensure the hardness of the constraint satisfaction problem CSP(Γ) for complexity classes L, NL, P, NP and ModpL. Th...
Benoit Larose, Pascal Tesson
RTA
2005
Springer
14 years 2 months ago
The Algebra of Equality Proofs
Proofs of equalities may be built from assumptions using proof rules for reflexivity, symmetry, and transitivity. Reflexivity is an axiom proving x=x for any x; symmetry is a 1-p...
Aaron Stump, Li-Yang Tan
LICS
2002
IEEE
14 years 1 months ago
Computational Adequacy for Recursive Types in Models of Intuitionistic Set Theory
This paper provides a unifying axiomatic account of the interpretation of recursive types that incorporates both domain-theoretic and realizability models as concrete instances. O...
Alex K. Simpson
KBSE
1998
IEEE
14 years 1 months ago
Explaining Synthesized Software
Motivated by NASA's need for high-assurance software, NASA Ames' Amphion project has developed a generic program generation system based on deductive synthesis. Amphion ...
Jeffrey Van Baalen, Peter Robinson, Michael R. Low...