About

Log in?

DTU users get better search results including licensed content and discounts on order fees.

Anyone can log in and get personalized features such as favorites, tags and feeds.

Log in as DTU user Log in as non-DTU user No thanks

DTU Findit
Boolean: (bicycle AND helmet) OR (head AND protection) (always group AND in parenthesis)
Title: title:(climate change)
Author: author:("bohr niels" OR "bohr n") (avoid only full first name)
Phrase: "water pump control" (does not work with wildcards)
Wildcards: wom?n pharm*

More help on how to search

Flexible matching

About search syntax

Search syntax Advanced
Close advanced
{{problem}}
By field Using AND/OR By author
This tool can help you build boolean queries suitable for doing a broad search for different synonyms or spellings of each word. Start via the drop-down below or just start typing in the search field.
{{ row.typeTitle }}: ( )

Since our index often lack the full first name of people it can be difficult to correctly search by author.

Fill in the fields and let us help you build a good query:

If you need to find everything possible, consider only searching by last name.

Use "Starting year" to ignore publications out of year range.

More...

Journal article · Preprint article

Natural Deduction Assistant (NaDeA)

By Villadsen, Jørgen1,2; From, Andreas Halkjær1,2; Schlichtkrull, Anders1,2

From

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 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.

Language: English
Publisher: Open Publishing Association
Year: 2019
Pages: 14-29
Proceedings: International Workshop on Theorem proving components for Educational software
ISSN: 20752180
Types: Journal article and Preprint article
DOI: 10.4204/EPTCS.290.2
ORCIDs: Villadsen, Jørgen , From, Andreas Halkjær and Schlichtkrull, Anders
Keywords

Electronic computers. Computer science Mathematics QA1-939 QA75.5-76.95 cs.LO

DTU users get better search results including licensed content and discounts on order fees.

Log in as DTU user

Access

Analysis