‎"KAILA, EINO.‎
‎Über das System der Wirklichkeitsbegriffe: Ein Beitrag zum Logischen Empirismus.‎

‎Helsinki, Druckerei- A.G., 1936. 4to. In the original printed wrappers. In ""Acta Philosophica Fennica Fasc. II."" Outer margin of front wrapper slight miscoloured, otherwise a fine and clean copy. 101 pp.‎

Reference : 51208

‎First appearance of Kaila's important work. Here testabillity became the main thesis of logical empiricism, accompanied by the principles of induction and simplicity together with the analyticity of the formal sciences. Kaila sent the book to Carnap who replied: ""I have read it with liveyl interest and also with complete agreement in the essential point. Diverging opinions in detals, of course, are inevitable.""‎