Varto’s early philosophical interest was in the history of logic; his mentor, professor Raili Kauppi was an internationally known Leibniz scholar and writer in intentional logic.
Juha-Pekka Haataja | Juha Mieto | Juha Leiviskä | Juha Hirvi | Juha | Varto | Juha Vainio | Juha Väätäinen | Juha Ruusuvuori | Juha (Merikanto) | Juha Ikonen |