Ole Hjortland's research is on logic and rationality. What makes an argument a good argument? What does it mean to think and act rationally? Are there universal norms for good reasoning? In 2016-2021, Hjortland was the Principal Investigator of a project on the philosophy of logic, funded by the Norwegian Research Council. He is an external member of the Munich Center for Mathematical Philosophy (LMU Munich), and an area editor of logic for the journal Ergo.

Hjortland is a member of the research group Bergen Logic Group at the Department of Philosophy.

 

Education:

Ph.D. University of St Andrews (Arché Research Centre), 2009
M.Litt. University of St Andrews, 2006
B.A. University of Bergen, 2004

 

 

LOG110 Introduction to formal logic

LOG111 Deduction and metalogic

FIL126 Philosophy of language

FIL343 Research topic in theoretical philosophy (Truth)

LOG112 Introduction to philosophical logic

 

 

 

Media feature article

• Ole Thomassen Hjortland; Pål Fjeldvig Antonsen (2018). Petter Eides stråmannsargument. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Sannhet er ikke alltid nok. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Hjelp dem der de er?. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Jordan Peterson og Per-Willy Amundsen slåss mot stråmenn. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Oljeministerens klimasemantikk. (external link)
• Ole Thomassen Hjortland; Pål Fjeldvig Antonsen (2018). Etterretningssjefens logiske bomskudd. (external link)
• Ole Thomassen Hjortland; Pål Fjeldvig Antonsen (2018). Politisk trolling om statsborgerskap. (external link)
• Ole Thomassen Hjortland; Pål Fjeldvig Antonsen (2018). Logikksjekk: Jan Tore Sanners «tenk på barna!»-argument. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Lysbakken og Steffensen leser rapport på sin måte. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Fare for smittende usannheter. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Lærer vi noe av terningkast-retorikken?. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Hareide mot ungdommen. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Roper varsku om «samlivsanarki». (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Partilederdebatt på villspor. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Siv Jensens forklaringsproblem. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Iselin Nybø om universitetenes tilknytningsmodell: Holder logikken?. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Støres ikke-svar. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). «Clickbait»-logikk. (external link)
• Pål Antonsen; Ole Thomassen Hjortland (2018). Erna Solbergs «whataboutism». (external link)

Lecture

• Ole Thomassen Hjortland (2017). Rasjonalitet i postfaktasamfunnet. (external link)

Conference lecture

• Ole Thomassen Hjortland (2017). Opinions and rationality. (external link)
• Ole Thomassen Hjortland; Benjamin Joseph Lewis Martin (2019). Explanations in logic and anti-exceptionalism. (external link)
• Ole Thomassen Hjortland (2018). Indispensability of logic. (external link)
• Ole Thomassen Hjortland; Benjamin Joseph Lewis Martin (2019). Explanations in logic and anti-exceptionalism. (external link)
• Ole Thomassen Hjortland; Benjamin Joseph Lewis Martin (2019). Explanations in logic and anti-exceptionalism. (external link)
• Ole Hjortland (2016). What counts as evidence for a logical theory?. (external link)
• Ole Thomassen Hjortland; Benjamin Joseph Lewis Martin (2021). Metaphysical and Epistemological Anti-Exceptionalism. (external link)
• Ole Thomassen Hjortland; Benjamin Joseph Lewis Martin (2019). Evidence in logic: Two case studies. (external link)
• Ole Thomassen Hjortland (2018). Engineering Logical Concepts. (external link)
• Ole Hjortland (2017). Teories of Truth and the Maxim of Minimal Mutilation. (external link)
• Ole Hjortland (2017). The indispensability of logic. (external link)
• Ole Thomassen Hjortland (2018). Disagreement about logic. (external link)
• Ole Hjortland (2016). What counts as evidence for a logical theory?. (external link)
• Ole Thomassen Hjortland (2025). The laws of logic as laws of nature. (external link)
• Ole Thomassen Hjortland (2025). The laws of logic as laws of nature. (external link)
• Ole Thomassen Hjortland (2021). Logical pluralism and abductivism in logic. (external link)
• Ole Thomassen Hjortland (2017). Theories of Truth and the Maxim of Minimal Mutilation. (external link)
• Ole Hjortland (2017). Pluralism and Anti-Exceptionalism. (external link)
• Ole Hjortland (2017). Engineering Logical Concepts. (external link)

Academic article

• Ole Thomassen Hjortland (2019). Disagreement about logic. (external link)
• Ole Hjortland; Julien Murzi (2009). Inferentialism and the Categoricity Problem: Reply to Raatikainen. (external link)
• Ole Thomassen Hjortland (2019). What counts as evidence for a logical theory?. (external link)
• Benjamin Joseph Lewis Martin; Ole Thomassen Hjortland (2024). Anti-Exceptionalism about Logic (Part I): From Naturalism to Anti-Exceptionalism. (external link)
• Ben Martin; Ole Thomassen Hjortland (2025). Anti-Exceptionalism About Logic (Part II): Methodological Anti-Exceptionalism About Logic. (external link)
• Benjamin Joseph Lewis Martin; Ole Thomassen Hjortland (2022). Anti-exceptionalism about logic as tradition rejection. (external link)
• Ole Hjortland (2017). Theories of truth and the maxim of minimal mutilation. (external link)

Academic book chapter

• Benjamin Joseph Lewis Martin; Ole Thomassen Hjortland (2024). Evidence in Logic. (external link)

Journal review

• Ole Hjortland (2015). Varieties of logic (Review). (external link)

Book anthology

• Ole Hjortland; Catarina Dutilh Novaes (2012). Insolubles and Consequences: Essays in Honour of Stephen Read. (external link)

Media interview

• Ole Thomassen Hjortland; Sveinung Sundfør Sivertsen; Finnur Ulf Dellsén (2021). Nils Klim-samtalen 2019: Intervju med Finnur Dellsén, vinner av Nils Klim-prisen 2019. (external link)

See a complete overview of publications in Cristin.

2016-2020 Anti-Exceptionalism About Logic (Norwegian Research Council). Principal Investigator.

2015-2016 The Logic of Truth (DFG-CONICET project). Principal investigator (with Eduardo Barrio, Buenos Aires). 

2013-2016 Mathematics: Objectivity by representation (ANR-DFG project). Project member. 

2009-2013 Foundations of Logical Consequence (AHRC project, Arché, St Andrews). Postdoctoral fellow.