Keyphrases
- valued logic
- relational algebra
- classical logic
- first order logic
- propositional logic
- query language
- fuzzy sets
- sql queries
- relational databases
- relational model
- fuzzy logic
- data exchange
- relational database systems
- multi valued
- database design
- truth values
- database
- expressive power
- database applications
- databases
- incomplete information
- data integration
- data model
- database queries
- genetic algorithm
- query answering
- knowledge base
- automated reasoning
- neural network
- real time