Automatic Decidability and Combinability Revisited
Identifieur interne : 004E34 ( Main/Merge ); précédent : 004E33; suivant : 004E35Automatic Decidability and Combinability Revisited
Auteurs : Christopher Lynch [États-Unis] ; Duc-Khanh Tran [France]Source :
- Lecture Notes in Computer Science [ 0302-9743 ]
Abstract
Abstract: We present an inference system for clauses with ordering constraints, called Schematic Paramodulation. Then we show how to use Schematic Paramodulation to reason about decidability and stable infiniteness of finitely presented theories. We establish a close connection between the two properties: if Schematic Paramodulation for a theory halts then the theory is decidable; and if, in addition, Schematic Paramodulation does not derive the trivial equality X = Y then the theory is stably infinite. Decidability and stable infiniteness of component theories are conditions required for the Nelson-Oppen combination method. Schematic Paramodulation is loosely based on Lynch-Morawska’s meta-saturation but it differs in several ways. First, it uses ordering constraints instead of constant constraints. Second, inferences into constrained variables are possible in Schematic Paramodulation. Finally, Schematic Paramodulation uses a special deletion rule to deal with theories for which Lynch-Morawska’s meta-saturation does not halt.
Url:
DOI: 10.1007/978-3-540-73595-3_22
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Then we show how to use Schematic Paramodulation to reason about decidability and stable infiniteness of finitely presented theories. We establish a close connection between the two properties: if Schematic Paramodulation for a theory halts then the theory is decidable; and if, in addition, Schematic Paramodulation does not derive the trivial equality X = Y then the theory is stably infinite. Decidability and stable infiniteness of component theories are conditions required for the Nelson-Oppen combination method. Schematic Paramodulation is loosely based on Lynch-Morawska's meta-saturation but it differs in several ways. First, it uses ordering constraints instead of constant constraints. Second, inferences into constrained variables are possible in Schematic Paramodulation. Finally, Schematic Paramodulation uses a special deletion rule to deal with theories for which Lynch-Morawska's meta-saturation does not halt.</div></front></TEI></HAL><ISTEX><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Automatic Decidability and Combinability Revisited</title><author><name sortKey="Lynch, Christopher" sort="Lynch, Christopher" uniqKey="Lynch C" first="Christopher" last="Lynch">Christopher Lynch</name></author><author><name sortKey="Tran, Duc Khanh" sort="Tran, Duc Khanh" uniqKey="Tran D" first="Duc-Khanh" last="Tran">Duc-Khanh Tran</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:C92807B3EB586D6054143FA0A4A627B440CFB013</idno><date when="2007" year="2007">2007</date><idno type="doi">10.1007/978-3-540-73595-3_22</idno><idno type="url">https://api.istex.fr/ark:/67375/HCB-2F5470VT-P/fulltext.pdf</idno><idno type="wicri:Area/Istex/Corpus">002F73</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">002F73</idno><idno type="wicri:Area/Istex/Curation">002F34</idno><idno type="wicri:Area/Istex/Checkpoint">001085</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">001085</idno><idno type="wicri:doubleKey">0302-9743:2007:Lynch C:automatic:decidability:and</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Automatic Decidability and Combinability Revisited</title><author><name sortKey="Lynch, Christopher" sort="Lynch, Christopher" uniqKey="Lynch C" first="Christopher" last="Lynch">Christopher Lynch</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Clarkson University</wicri:regionArea></affiliation></author><author><name sortKey="Tran, Duc Khanh" sort="Tran, Duc Khanh" uniqKey="Tran D" first="Duc-Khanh" last="Tran">Duc-Khanh Tran</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>LORIA & INRIA-Lorraine</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="s" type="main" xml:lang="en">Lecture Notes in Computer Science</title><idno type="ISSN">0302-9743</idno><idno type="eISSN">1611-3349</idno><idno type="ISSN">0302-9743</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0302-9743</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: We present an inference system for clauses with ordering constraints, called Schematic Paramodulation. Then we show how to use Schematic Paramodulation to reason about decidability and stable infiniteness of finitely presented theories. We establish a close connection between the two properties: if Schematic Paramodulation for a theory halts then the theory is decidable; and if, in addition, Schematic Paramodulation does not derive the trivial equality X = Y then the theory is stably infinite. Decidability and stable infiniteness of component theories are conditions required for the Nelson-Oppen combination method. Schematic Paramodulation is loosely based on Lynch-Morawska’s meta-saturation but it differs in several ways. First, it uses ordering constraints instead of constant constraints. Second, inferences into constrained variables are possible in Schematic Paramodulation. Finally, Schematic Paramodulation uses a special deletion rule to deal with theories for which Lynch-Morawska’s meta-saturation does not halt.</div></front></TEI></ISTEX></double></record>Pour manipuler ce document sous Unix (Dilib)
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