December 2, 1969
Dear Professor Spisani:

      I am astonished that you insist on your decision not to
publish your book. It is essential that you make your number
theory knownl and I have already emphasized the importance of
the presentation of multipliers and divisors. Don't have any
doubts. You have my total support.

      With best wishes
                                   Sincerely yours,
                                   Rudolf Carnap,
                                   Professor of Philosophy,
                                   Emeritus

La teoria generale dei numeri relativi
di F. Spisani

Estratti:

• Dalla prefazione.
• Inizio del libro.
• Dall'indice dei simboli.

Vorrei solo richiamare il testo del Teorema 1, non ricorda in modo sorprendente talune dimostrazioni dell'esistenza di Dio?

Centro Superiore di Logica e Scienze Comparate

Via Belmeloro, 3 - Bologna - Italia

Presidente: Prof. Franco Spisani

Direttori di Ricerca: Prof. Irving M. Copi, Prof. Carl G. Hempel, Prof. André Martinet, Prof. Prof. Ernest Nagel, Prof. Karl Popper, Prof. Paul Ricoeur, Prof. Patrick Suppes,

Comitato consultativo: Prof. G. Balandier, Prof. C. Bessire, Prof. L. Chiusano, Prof. P. Gochet, Ing. A. Godard, Ing. J. L. Fobelets, Prof. J. Hartnack, Dr. M. Mikaelian, Prof. O. Reiser, Prof. B. M. Kedrov, Prof. O. Onicescu, Prof. M. Sanchez-Mazas,

Aims:

a) Support and assist studies of Logic by means of the "Rassegna Internazionale di Logica";

b) contribute to make known articles, research and initiatives carried out in this field throughout the world.

Members of the Advisory Committee are consulted about subject matters in their own field of knowledge; in their turn they can submit propositions to che Centre.