We present a method for finding morphisms between formal theories, both within as well as across libraries based on different logical foundations. As they induce new theorems in the target theory for any of the source theory, theory morphisms are high-value elements of a modular formal library. Usually, theory morphisms are manually encoded, but this practice requires authors who are familiar with source and target theories at the same time, which limits the scalability of the manual approach. To remedy this problem, we have developed a morphism finder algorithm that automates theory morphism discovery. In this paper we present an implementation in the MMT system and show specific use cases. We focus on an application of theory discovery, where a user can check whether a (part of a) formal theory already exists in some library, potentially avoiding duplication of work or suggesting an opportunity for refactoring.
CITATION STYLE
Müller, D., Kohlhase, M., & Rabe, F. (2018). Automatically finding theory morphisms for knowledge management. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 11006 LNAI, pp. 209–224). Springer Verlag. https://doi.org/10.1007/978-3-319-96812-4_18
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