This is identical with the first edition (see 21: 2716) except for the addition of a Supplement containing 5 previously published articles and the bringing of the bibliography (now 73 items) up to date. The 5 added articles present clarifications or modifications of views expressed in the first edition. (PsycINFO Database Record (c) 2009 APA, all rights reserved).

Frege's notion of 'bedeutung' (b.) is here interpreted not as the object for which an expression stands but as its truth-Value potential. This is achieved by beginning with the b. Of sentences and defining the b. Of names as that property of them which remains constant when they are substituted in sentences without a change in truth-Value. This interpretation is shown to receive confirmation from what frege says in a recently published manuscript about the b. Of predicates; finally, It is (...) applied to frege's doctrine of oblique b. (shrink)

Provides comprehensive coverage of logical structure as well as the techniques of formal reasoning.