Natural Deduction Assistant (NaDeA)
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Abstract (arXiv)
We present the Natural Deduction Assistant (NaDeA) and discuss its advantages and disadvantages as a tool for teaching logic. NaDeA is available online and is based on a formalization of natural deduction in the Isabelle proof assistant. We first provide concise formulations of the main formalization results. We then elaborate on the prerequisites for NaDeA, in particular we describe a formalization in Isabelle of "Hilbert's Axioms" that we use as a starting point in our bachelor course on mathematical logic. We discuss a recent evaluation of NaDeA and also give an overview of the exercises in NaDeA.
Key facts. Cited by 3 papers in the map (data through 14 Oct 2026). First posted on arXiv 1 Apr 2019.
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Citing papers per year: 2023: 1; 2024: 1; 2025: 1.
3 papers.
- 2023On Exams with the Isabelle Proof Assistantcited by 1
- 2024Teaching Higher-Order Logic Using Isabellecited by 0
- 2025Minimal Sequent Calculus for Teaching First-Order Logic: Lessons Learnedcited by 0
- 2025Minimal Sequent Calculus for Teaching First-Order Logic: Lessons Learned9 May 2025
- 2024Teaching Higher-Order Logic Using Isabelle8 Apr 2024
- 2023On Exams with the Isabelle Proof Assistant10 Mar 2023