Knowledge Representation & Reasoning (KR&R) is a fundamental
topic in Artificial Intelligence. A basic KR language is First–
Order Logic (FOL), the most representative logic–based representation
language, which is part of almost any introductory AI course. In this
work we present KRRT (Knowledge Representation & Reasoning Tutor).
KRRT is a Web–based system which main goal is to help the student to
learn FOL as a KR&R language.Ministerio de Educación y Ciencia TIN2004–0388
