- Author: Juan José Sanguineti
- Language: English
- Year: 1992
- Author: Christopher Leary and Lars Kristiansen
- Language: English
- Author: Bob Dumas and John E. McCarthy
- Language: English
- Author: Dana Ernst
- Language: English
- Author: Bogusław Wolniewicz
- Language: Polish
- Year: 1968
Logic
pdf
- Author: Alexandra Getmanova
- Language: English
- Year: 1989
- Author: gerson robison
- Language: English
- Year: 1969
Paradoxes
pdf
- Author: Sainsbury R. M. (Richard Mark)
- Language: English
- Year: 2009
