Stefan Berghofer
2007
First-Order Logic According to Fitting
Archive of Formal Proofs
http://isa-afp.org/entries/FOL-Fitting.shtml, Formal proof development
A. Church
1956
Introduction to Mathematical Logic
Princeton University Press
H. Geuvers
2009
Proof Assistants: History, Ideas and Future
Sadhana
34
1
3–25
10.1007/s12046-009-0001-5
Alexander Birch Jensen
John Bruntse Larsen
Anders Schlichtkrull
Jørgen Villadsen
2018
Programming and verifying a declarative first-order prover in Isabelle/HOL
AI Communications
31
3
281–299
10.3233/AIC-180764
Julius Michaelis
Tobias Nipkow
2017
Propositional Proof Systems
Archive of Formal Proofs
http://isa-afp.org/entries/Propositional_Proof_Systems.shtml, Formal proof development
Tobias Nipkow
Lawrence C. Paulson
Markus Wenzel
2002
Isabelle/HOL - A Proof Assistant for Higher-Order Logic
Lecture Notes in Computer Science
2283
Springer
10.1007/3-540-45949-9
Jørgen Villadsen
Andreas Halkjær From
Anders Schlichtkrull
2017
Natural Deduction and the Isabelle Proof Assistant
Pedro Quaresma
Walther Neuper
Proceedings 6th International Workshop on Theorem proving components for Educational Software (ThEdu)
EPTCS
267
140–155
10.4204/EPTCS.267.9
Jørgen Villadsen
Alexander Birch Jensen
Anders Schlichtkrull
2017
NaDeA: A Natural Deduction Assistant with a Formalization in Isabelle
IFCoLog Journal of Logics and their Applications
4
1
55–82