Métamathématique
djvu
- Author: Paul Lorenzen
- Language: French
- Year: 1967
- Author: Paul Lorenzen (auth.)
- Language: German
- Year: 1960
- Author: Paul Lorenzen (auth.)
- Language: German
- Year: 1969
- Author: Paul Lorenzen (auth.)
- Language: German
- Year: 1955
- Author: Paul Lorenzen
- Language: English
- Year: 1987