1 “... thesis for the Doctorate in philosophy, I was prevented by the academic mores of that university from...”

2 “... and to Kluwer Academic Publishers for their continuing support for the Handbook...”

3 “... in an academic field is a mark of Jan's achievement, but only of one aspect of it, for historians of philosophy...”

4 “... esoteric in academic circles in Continental Europe, Latin America and the Antipodes) and, quite important...”

5 “...: Philosophers of mathematics and logicians, both academic and graduate students, particularly those interested...”