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Journal article

NaDeA: A Natural Deduction Assistant with a Formalization in Isabelle

By Villadsen, Jørgen1,2; Jensen, Alexander Birch1; Schlichtkrull, Anders1,2

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Department of Applied Mathematics and Computer Science, Technical University of Denmark1

Algorithms and Logic, Department of Applied Mathematics and Computer Science, Technical University of Denmark2

We present a new software tool for teaching logic based on natural deduction. Its proof system is formalized in the proof assistant Isabelle such that its definition is very precise. Soundness of the formalization has been proved in Isabelle. The tool is open source software developed in TypeScript / JavaScript and can thus be used directly in a browser without any further installation.

Although developed for computer science bachelor students who are used to study and program concrete computer code in a programming language we consider the approach relevant for a broader audience and for other proof systems as well.

Language: English
Year: 2017
Pages: 55-82
ISSN: 20553714
Types: Journal article
ORCIDs: Villadsen, Jørgen , Jensen, Alexander Birch and Schlichtkrull, Anders
Keywords

First-Order Logic Formalization Higher-Order Logic Isabelle Proof Assistant Natural Deduction

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