Sense and Reference in Frege���s Logic

The present study of sense and reference in the logic of Frege represents the first fruits of several years of dealing with the work of this great German logician. In the preparation of this work which was presented as a dissertation to the Faculty of Philosophy of the Friedrich-Alexander University in Erlangen/Nuremberg assistance came from many quarters. lowe most to Professor R. Zocher who directed this dissertation with understanding counsel and unflagging interest. I must also thank Professor P. Lorenzen whose courses and seminars provided more inspiration than might be immediately apparent in the book. Professor W. Britzelmayr of Munich was so kind as to provide copies of important fragments of Freges works. These texts are reproduced with the permission of Professor H. Hermes Director of the Institut fUr mathematische Logik und Grund­ lagenforschung in Munster where Freges works and letters are being prepared for publication. The preparation of this work was greatly facilitated by a two-year grant from the Fritz Thyssen Foundation. CHRISTIAN THIEL Nuremberg February 1965 v TRANSLATORS NOTE In the difficult matter of Fregean terminology we have taken Ignacio Angelellis translation of Two Soviet Studies on Frege as the model. Both Professor Angelelli and Dr. Thiel have been so kind as to read over the translation before publication.