![book Principles of Truth: [conference "Truth, Necessity and Provability", which was held in Leuven, Belgium, from 18 to 20 November 1999]](/covers/files_170/3795000/a67f5eb654f528b4e46a8a9177186f14-d.jpg)
- Author: Volker Halbach (editor), Leon Horsten (editor)
- Language: German
- Year: 2013
- Author: Leon Horsten
- Language: English
- Year: 2019
- Author: Leon Horsten Philip Welch
- Language: English
- Year: 2016
- Author: Leon Horsten Richard Pettigrew (eds.)
- Language: English
- Year: 2011
- Author: Leon Horsten
- Language: English
- Year: 2011
- Author: Leon Horsten Richard Pettigrew (eds.)
- Language: English
- Year: 2011
- Author: Leon Horsten
- Language: English
- Year: 2011
- Author: Leon Horsten
- Language: English
- Year: 2011