network of theories. Results are typically proved in compact, abstract theories, and then transported as needed to more concrete theories, or indeed to Supported by the MITRE-Spon...
William M. Farmer, Joshua D. Guttman, F. Javier Th...
Logic and databases have gone a long way together since the advent of relational databases. Already the rst basic query languages for relational databases beside relational algebra...
There are syntactically identifiable situations in which reduction does not occur in chain format linear deduction systems, i.e. situations in which linear-input subdeductions are ...
We consider non-Horn Deductive Data Bases (DDB) represented in a First Order language without function symbols. In this context the DDB is an incomplete description of the world. ...
e introducing the types and constants of the logic, i.e. its abstract syntax, and axioms describing the inference rules. As a tiny example, consider the following definition of min...