TY - GEN
T1 - Polite theories revisited
AU - Jovanović, Dejan
AU - Barrett, Clark
PY - 2010
Y1 - 2010
N2 - The classic method of Nelson and Oppen for combining decision procedures requires the theories to be stably-infinite. Unfortunately, some important theories do not fall into this category (e.g. the theory of bit-vectors). To remedy this problem, previous work introduced the notion of polite theories. Polite theories can be combined with any other theory using an extension of the Nelson-Oppen approach. In this paper we revisit the notion of polite theories, fixing a subtle flaw in the original definition. We give a new combination theorem which specifies the degree to which politeness is preserved when combining polite theories. We also give conditions under which politeness is preserved when instantiating theories by identifying two sorts. These results lead to a more general variant of the theorem for combining multiple polite theories.
AB - The classic method of Nelson and Oppen for combining decision procedures requires the theories to be stably-infinite. Unfortunately, some important theories do not fall into this category (e.g. the theory of bit-vectors). To remedy this problem, previous work introduced the notion of polite theories. Polite theories can be combined with any other theory using an extension of the Nelson-Oppen approach. In this paper we revisit the notion of polite theories, fixing a subtle flaw in the original definition. We give a new combination theorem which specifies the degree to which politeness is preserved when combining polite theories. We also give conditions under which politeness is preserved when instantiating theories by identifying two sorts. These results lead to a more general variant of the theorem for combining multiple polite theories.
UR - http://www.scopus.com/inward/record.url?scp=78449265426&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78449265426&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-16242-8-29
DO - 10.1007/978-3-642-16242-8-29
M3 - Conference contribution
AN - SCOPUS:78449265426
SN - 364216241X
SN - 9783642162411
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 402
EP - 416
BT - Logic for Programming, Artificial Intelligence, and Reasoning - 17th International Conference, LPAR-17, Proceedings
A2 - Fermuller, Christian G.
T2 - 17th International Conference on Logic for Programming, Artificial Intelligence, and Reasoning, LPAR-17
Y2 - 10 October 2010 through 15 October 2010
ER -