TY  - BOOK
AU  - Frege,Gottlob
AU  - Geach,P.T.
TI  - Logical investigations
SN  - 0300021275
PY  - 1977///
CY  - New Haven
PB  - Yale University Press
KW  - Logic
KW  - Negation (Logic)
KW  - Thought and thinking
N1  - Translation of three articles first published by Frege in the periodical Beitrage zur Philosophie des deutschen Idealismus in 1918 and 1923; Errata slip inserted; Bibliography: p. 79-82
ER  -