R. Bogdan

• D. M. Armstrong
• D.M. Armstrong (Profiles)
• Henry E. Kyberg, Jr. and Isaac Levi (Profiles)
• Jaakko Hintikka (Profiles)
• Keith Lehrer (Profiles)
• Logic, Language, and Probability
• Logical Induction
• Roderick M. Chisholm
• Henry E. Kyburg, Jr. & Isaac Levi
• Jaakko Hintikka
• Keith Lehrer
• Local Induction