Categorical Abstract Logic: Hidden Multi-Sorted Logics as Multi-Term π-Institutions

Autor: George Voutsadakis
Přispěvatelé: Lake Superior State University, School of Mathematics and Computer Science
Rok vydání: 2016
Předmět:
Zdroj: Bulletin of the Section of Logic. 45
ISSN: 2449-836X
0138-0680
DOI: 10.18778/0138-0680.45.2.04
Popis: Babenyshev and Martins proved that two hidden multi-sorted deductive systems are deductively equivalent if and only if there exists an isomorphism between their corresponding lattices of theories that commutes with substitutions. We show that the π-institutions corresponding to the hidden multi-sorted deductive systems studied by Babenyshev and Martins satisfy the multi-term condition of Gil-F´erez. This provides a proof of the result of Babenyshev and Martins by appealing to the general result of Gil-F´erez pertaining to arbitrary multi-term π-institutions. The approach places hidden multi-sorted deductive systems in a more general framework and bypasses the laborious reuse of well-known proof techniques from traditional abstract algebraic logic by using “off the shelf” tools.
Databáze: OpenAIRE