Buy, DmitriyPuzikova, AnnaБуй, Дмитро БорисовичПузікова, Анна Валентинівна2017-06-302017-06-302011Buy D. Completeness of armstrong's axiomatic / D. Bui, A. Puzikova // Critical infrastructure safety and security (CrlSS-DESSERT'11) (Kirovograd Ukraine May 11-13 2011). - Kharkiv, 2011. - Vol. 1. - P. 211-215.https://dspace.cusu.edu.ua/handle/123456789/2615(en) This paper presents a rigorous and convincing proof that Armstrong’s axiomatic system (as the foundation of relational database normalization theory) is complete and sound within the paradigm of mathematical logic: the relations of syntactic and semantic entailment are introduced and it is shown that they coincide. The properties of set-theoretic data structure functional constraints have been used as mathematical framework.enschemefunctional dependencesemantically deducednormalizationArticle