Home | Legals | Data Protection | Sitemap | KIT

Institute of Philosophy

Douglasstr. 24
76131 Karlsruhe
Tel.: +49 721 608-42149

E-Mail: gregor betzVrg6∂kit edu

Grenzenlos studieren

Eine Initiative der Hochschulrektorenkonferenz und des Deutschen Studentenwerks.

Against Racism
weltoffene hochschulen
Pro Europe


Welcome to DebateLab

DebateLab brings together scholars who

  • study normative models of reasoning and argumentation;
  • carry out logical analyses of policy debates and scientific controversies;
  • develop methods and tools to improve the argumentative quality of public reasoning.  

DebateLab is hosted at KIT's Institute of Philosophy / ITZ (working group political philosophy and argumentation theory) and ITAS.

For additional info see our research activities or contact Gregor Betz.


News and Notes

Project Mediating Machines

With partners from computer science and political science DebateLab studies opportunities and challenges of Artificial Intelligence (AI) in peacemaking. The project "Mediating Machines?" is funded by a Volkswagen Foundation Planning Grant, 2020-21.

Summer Course Argument Analysis

Together with Uni Bern, we organize a 4-day workshop on argument analysis in Bioschwand near Bern (CH) (21/05/20-24/05/20). For more info, please consult our

E-Learning Course...
tree of life
DFG-Network "Simulation of Scientific Inquiry"

DebateLab is part of the DFG-funded network "Simulation of Scientific Inquiry", coordinated by Dunja Seselja (Eindhoven) and Rush Stewart (Munich).

SNF/DFG funded project

A joint project with Claus Beisbart and Georg Brun from Uni Bern (CH) on formal models of reflective equilibrium has been approved by SNF and DFG (2020-23).

Deliberation in the Lab

DebateLab cooperates with André Bächtiger (political science, Uni Stuttgart) in a Terra-Incognita-Project (2020) to study both experimentally and computationally the enabling conditions for rational deliberation.

museum x
Public Debate & Live Argument Mapping

In cooperation with museum x, DebateLab has held a public debate about flying and climate change on 19 November 2019, providing live analysis and feedback during the discussion. The event is paralleld by an online discussion at kialo.com


Screenshot Arguing at School
DFG-Network "Arguing at School"

DebateLab is part of the DFG-funded network "Arguing at School", coordinated by David Löwenstein from Uni Jena.

Network website...
Public debate "Streitkultur"

David Lanius organizes and chairs a panel discussion with Prof. Dr. Andrea Römmele (Hertie School of Governance) and Prof Dr. Annette Leßmöllmann (WMK, KIT) on october 15, 2019.


cover lanius oup
New Book with OUP

David Lanius' "Strategic Indeterminacy in the Law," a study on the value and function of semantic vagueness in the law, has been published with Oxford University Press.

Publisher's website...

Lanius on TV

David Lanius has been a guest in the TV show DAS! on 27 February 2019 and critically discussed the art of provocation. On 08 May 2019, he was interviewed for the prime time news broadcast "Heute Journal".

Fake News Book

David Lanius (KIT, DebateLab) and Romy Jaster (HU Berlin) have just published a new book on Fake News. See also this Website for reviews and suppl. material.

Publisher's site...
Tiny Critical Thinking Cards

We've started to create critical thinking flashcards with tinycards from duolingo. Feeback is more than welcome! 

Tiny Critical Thinking Cards
European network for argumentation and public policy analysis

DebateLab contributes to the COST Action – European network for argumentation and public policy analysis, which is co-ordinated by Marcin Lewinski from ArgLab, Lisbon.

COST-Action website...
kit nch
Conference NCH-KIT

David Lanius and Michael Schefczyk co-organize a two-day conference "Improving Public Debate and Political Decision-Making: The Last Democracy Conference before Brexit?" to be held 28-29 march 2019 in London.




David Lanius explains the aims and scope of the online campaign "Deutschland spricht" ("Germany speaks") at one of Germany's top news broadcasts.

The interview...
argdown logo

Christian Voigt has developed Argdown, a Markdown-inspired syntax for complex argumentation. Supplementary open-source tools support both informal argument mapping and sophisticated logical analysis.

Workshop Belief Suspension

The workshop "Suspension of Belief," co-organized by Alexandra Zinke, is held 26-27 October 2018 at University Mannheim, Chair of Theoretical Philosophy / Philosophy of Language.

Workshop Poster...

Conference on ABMs

With Dunja Šešelja (LMU Munich, Ruhr-University Bochum) and Christian Straßer (Ruhr-University Bochum), we organize a conference on agent based models in philosophy, to be held from 20-22 March 2019 in Bochum.

Call for papers...
New Book

Alexandra Zinke's The Metaphysics of Logical Consequence, which critically assesses and reinterprets the notion of deductive inference, is published with Klostermann.

More info...
Visiting Fellow

Matthew Dentith, expert for the epistemology of fake news and conspiracy theories, has been visiting DebateLab in June 2018.

Matthew's blog...
DAAD Fellow

Kevin Ashley, renowned expert in AI and argumentation from the University of Pittsburgh, is visiting DebateLab as DAAD fellow in May 2018.

Personal homepage...
Summer School Argument Analysis

Together with Uni Bern, we organize a 4-day workshop on argument analysis in Abtei Lichtenthal at Baden-Baden (31/05-03/06). For more info, please consult the


Argumentation Games

We develop and try out ideas for argumentation and debating games at an informal workshop, Feb 8 2018, 18-22h. The event takes place at ZKM's Open Codes exhibition. Interested in joining us? Then please leave a


Online Participation in Decision Processes

DebateLab co-organized and contributed to an interdisciplinary workshop on online participation, held from 09 to 10/11/2017 at KIT.

Workshop program...
Mini Opinion Map

OpMAP is a tool for eliciting, analysing and visualising opinion data about controversial issues. It integrates methods from formal argumentation theory, network analysis, and graph drawing. An opinion map about what you should eat is currently displayed at the Open Codes exhibition at ZKM.

OpMAP project page ...
Populist Argumentation

David Lanius has carried out an in-depth analysis of populist, right-wing argumentation in Germany.

Argument analysis...
Ten Rules for Having a Good Discussion

David Lanius and Romy Jaster have compiled a list of 10 rules that may prevent a debate from escalating. Their article is published with Zeit Online.

Ten rules ...
Dan Singer
Visiting Scientist

Dan Singer from the University of Pennsylvania, Philadelphia, is visiting DebateLab from June 18 to June 25.

Personal homepage...
Argumentation and Opinion Dynamics

An international workshop, to be held at June 19, which explores ways of representing argumentation in multi-agent models of opinion dynamics.

Workshop Agenda...

Judgment Aggregation meets Argumentation

Interdisciplinary Workshop with scholars from KIT and HHU Düsseldorf, held at Feb 2, 2017.

Workshop Agenda...
Cover Debate Dynamics
Debate Simulations

Debate Dynamics: How Controversy Improves Our Beliefs. Betz, G. Synthese Library. Published with Springer, 2013. [Youtube teaser]

Book at Springer...
Cover Dung
Critique of Dung

"Assessing the epistemological relevance of Dung-style argumentation theories." Betz, G. Ann Math Artif Intell (2016) 78: 303.

Article at SpringerLink...
Argunet Logo

DebateLab develops and uses sophisticated argument mapping software. The Open Source Argunet editor is freely available here. Have a look at some sample argument maps.

Argunet Project...
Cover Argumentative Turn
The Argumentative Turn

The Argumentative Turn in Policy Analysis. Reasoning about Uncertainty. Hansson, Sven Ove & Hirsch Hadorn, Gertrude (Eds.). Published with Springer, 2016.

Book at Springer...