Abstract
In the Nelson–Oppen combination method for satisfiability modulo theories, the combined theories must be stably infinite; in gentle combination, one theory has to be gentle, and the other has to satisfy a similar yet weaker property; in shiny combination, only one has to be shiny (smooth, with a computable minimal model function and the finite model property); and for polite combination, only one has to be strongly polite (smooth and strongly finitely witnessable). For each combination method, we prove that if any of its assumptions are removed, then there is no general method to combine an arbitrary pair of theories satisfying the remaining assumptions. We also prove new theory combination results that weaken the assumptions of gentle and shiny combination.
| Original language | English |
|---|---|
| Title of host publication | Automated Deduction - CADE 30 - 30th International Conference on Automated Deduction, 2025, Proceedings |
| Editors | Clark Barrett, Uwe Waldmann |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 17-34 |
| Number of pages | 18 |
| ISBN (Print) | 9783031999833 |
| DOIs | |
| State | Published - 2025 |
| Event | 30th International Conference on Automated Deduction, CADE 2025 - Stuttgart, Germany Duration: 28 Jul 2025 → 31 Jul 2025 |
Publication series
| Name | Lecture Notes in Computer Science |
|---|---|
| Volume | 15943 LNAI |
| ISSN (Print) | 0302-9743 |
| ISSN (Electronic) | 1611-3349 |
Conference
| Conference | 30th International Conference on Automated Deduction, CADE 2025 |
|---|---|
| Country/Territory | Germany |
| City | Stuttgart |
| Period | 28/07/25 → 31/07/25 |
Bibliographical note
Publisher Copyright:© The Author(s) 2025.