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Section 2 explores this account in detail, and reveals some of the difficulties inherent in it. Sections 3 and 4 show how the needs of Frege’s project in the philosophy of mathematics brought these difficulties to the fore and led to the development of the mature sense–reference distinction.
The reference and sense of a sign are to be distinguished from the associated idea. If the reference of a sign is an object perceivable by the senses, my idea of it is an inter-nal image,[3] arising from memories of sense impressions which I have had and acts, both internal and external, which I have performed.
14 de set. de 1995 · Frege’s seminal paper in the philosophy of language is ‘Über Sinn und Bedeutung’ (‘On Sense and Reference’, 1892a). In this paper, Frege considered two puzzles about language and noticed, in each case, that one cannot account for the meaningfulness or logical behavior of certain sentences simply on the basis of the denotations of the terms (names and descriptions) in the sentence.
Two features distinguish this study from other books on Frege. First, sense and reference are placed absolutely at the core of Frege's work; the author shows that no adequate account of the theory can avoid analysing the notion of thought that underpins it, or explaining how it has clarified our concept of judgement.
Frege’s response to this puzzle, given the distinction between sense and reference, should be apparent. Because the reference of “the evening star” and “the morning star” is the same, both statements are true in virtue of the same object’s relation of identity to itself.
For Frege, we are obliged to distinguish sense from reference to do justice to differences between sentences that cannot sensibly be accommodated by a theory of reference alone – differences, nevertheless, that logic obliges us to recognize. The considerations that govern the logical appraisal of our assertions or judgements require an appeal ...
The discovery that the rising sun is not new every morning, but always the same, was one of the most fertile astronomical discoveries. Even to-day the identification of a small planet or a comet is not always a matter of course. Now if we were to regard equality as a relation between that which the names ‘a’ and ‘b’ designate, it would ...
