Fuzzy logic deduction with crisp observations

This paper presents an approach to approximate reasoning over a set of IF-THEN rules called fuzzy logic deduction. It understands IF-THEN rules as linguistically expressed logical implications and interprets them inside formal logical theory. Methodology and some properties are presented. This paper has been supported by the Grant A1187901/99 of the GA AV R and project W-00-016 of the Cz-US scientific cooperation.