The study presented in this book was entered upon by me from a legal point of view. 'Legal logic' has been known for a long time, concerning itself with the methodology of legal and in particular judicial reasoning. In modern days, however, this 'legal logic' is sometimes also connected with modern formal logic, as it has been developed in the works of G. Boole, A. de Morgan, G. Frege, C.S. Peirce, E. Schroder, G. Peano, A.N. Whitehead, B. Russell and others. For me this gave rise to the as yet not very specific question about the meaning of modern symbolic logic for law. Already in an early...

AREND SOETEMAN In the past we lived on one earth, but in many different worlds. Different civilisations, in regions far apart, knew about one another (at least from about the 16th century), they competed with one another or tried to dominate the other, they influenced one another, but in many important aspects they were independent from one another. Somewhere in the 20th century, however, this changed. There is no far apart anymore. We have lived through two European wars, which developed into world wars. Modem aeroplanes allow us to travel in only a couple of hours around the world. Instant...