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LicenseRef-GPL licensed by Bastiaan Heeren, Alex Gerdes, Johan Jeuring
Interactive domain reasoner for logic and mathematics, based on the
feedback services of the Ideas framework. Domains supported include
propositional logic (disjunctive normal form and equivalence proofs),
mathematics (fractions, polynomial equations, powers, derivatives),
linear algebra (Gaussian elimination and linear systems), and relation
algebra. The domain reasoner is used by learning environments such as
the digital mathematical environment of the Freudenthal Institute, MathDox,
ActiveMath, and the LogEx logic tool.