ⓘ Sense and reference. In the philosophy of language, the distinction between sense and reference was an innovation of the German philosopher and mathematician Go ..


ⓘ Sense and reference

In the philosophy of language, the distinction between sense and reference was an innovation of the German philosopher and mathematician Gottlob Frege in 1892, reflecting the two ways he believed a singular term may have meaning.

The reference or "referent"; Bedeutung of a proper name is the object it means or indicates bedeuten, whereas its sense Sinn is what the name expresses. The reference of a sentence is its truth value, whereas its sense is the thought that it expresses. Frege justified the distinction in a number of ways.

  • Sense is something possessed by a name, whether or not it has a reference. For example, the name "Odysseus" is intelligible, and therefore has a sense, even though there is no individual object its reference to which the name corresponds.
  • The sense of different names is different, even when their reference is the same. Frege argued that if an identity statement such as "Hesperus is the same planet as Phosphorus" is to be informative, the proper names flanking the identity sign must have a different meaning or sense. But clearly, if the statement is true, they must have the same reference. The sense is a mode of presentation, which serves to illuminate only a single aspect of the referent.

Much of analytic philosophy is traceable to Freges philosophy of language. Freges views on logic led to his views on a theory of reference.


1. Background

Frege developed his original theory of meaning in early works like Begriffsschrift concept script of 1879 and Grundlagen foundations of arithmetic of 1884. On this theory, the meaning of a complete sentence consists in its being true or false, and the meaning of each significant expression in the sentence is an extralinguistic entity which Frege called its Bedeutung, literally meaning or significance, but rendered by Freges translators as reference, referent, M eaning, nominatum, etc. Frege supposed that some parts of speech are complete by themselves, and are analogous to the arguments of a mathematical function, but that other parts are incomplete, and contain an empty place, by analogy with the function itself. Thus "Caesar conquered Gaul" divides into the complete term "Caesar", whose reference is Caesar himself, and the incomplete term - conquered Gaul", whose reference is a concept. Only when the empty place is filled by a proper name does the reference of the completed sentence – its truth value – appear. This early theory of meaning explains how the significance or reference of a sentence its truth value depends on the significance or reference of its parts.


2. Sense

Frege introduced the notion of "sense" German: Sinn to accommodate difficulties in his early theory of meaning.

First, if the entire significance of a sentence consists of its truth value, it follows that the sentence will have the same significance if we replace a word of the sentence with one having an identical reference, as this will not change its truth value. The reference of the whole is determined by the reference of the parts. If the evening star has the same reference as the morning star, it follows that the evening star is a body illuminated by the Sun has the same truth value as the morning star is a body illuminated by the Sun. But it is possible for someone to think that the first sentence is true while also thinking that the second is false. Therefore, the thought corresponding to each sentence cannot be its reference, but something else, which Frege called its sense.

Second, sentences that contain proper names with no reference cannot have a truth value at all. Yet the sentence Odysseus was set ashore at Ithaca while sound asleep obviously has a sense, even though Odysseus has no reference. The thought remains the same whether or not Odysseus has a reference. Furthermore, a thought cannot contain the objects that it is about. For example, Mont Blanc, with its snowfields, cannot be a component of the thought that Mont Blanc is more than 4.000 metres high. Nor can a thought about Etna contain lumps of solidified lava.

Freges notion of sense is somewhat obscure, and neo-Fregeans have come up with different candidates for its role. Accounts based on the work of Carnap and Church treat sense as an intension, or a function from possible worlds to extensions. For example, the intension of number of planets’ is a function that maps any possible world to the number of planets in that world. John McDowell supplies cognitive and reference-determining roles. Michael Devitt treats senses as causal-historical chains connecting names to referents.


3. Sense and description

In his theory of descriptions, Bertrand Russell held the view that most proper names in ordinary language are in fact disguised definite descriptions. For example, Aristotle can be understood as "The pupil of Plato and teacher of Alexander", or by some other uniquely applying description. This is known as the descriptivist theory of names. Because Frege used definite descriptions in many of his examples, he is often taken to have endorsed the descriptivist theory. Thus Russells theory of descriptions was conflated with Freges theory of sense, and for most of the twentieth century this "Frege–Russell" view was the orthodox view of proper name semantics. However, Saul Kripke argued compellingly against the descriptivist theory. According to Kripke, proper names are rigid designators which designate the same object in every possible world. Descriptions such as "the President of the U.S. in 1969" do not designate the same in every possible world. For example, someone other than Richard Nixon, e.g. Lyndon B. Johnson, might have been the President in 1969. Hence a description or cluster of descriptions cannot be a rigid designator, and thus a proper name cannot mean the same as a description.

However, the Russellian descriptivist reading of Frege has been rejected by many scholars, in particular by Gareth Evans in The Varieties of Reference and by John McDowell in "The Sense and Reference of a Proper Name", following Michael Dummett, who argued that Freges notion of sense should not be equated with a description. Evans further developed this line, arguing that a sense without a referent was not possible. He and McDowell both take the line that Freges discussion of empty names, and of the idea of sense without reference, are inconsistent, and that his apparent endorsement of descriptivism rests only on a small number of imprecise and perhaps offhand remarks. And both point to the power that the sense-reference distinction does have i.e., to solve at least the first two problems, even if it is not given a descriptivist reading.


4. Translation of Bedeutung

As noted above, translators of Frege have rendered the German Bedeutung in various ways. The term reference has been the most widely adopted, but this fails to capture the meaning of the original German meaning or significance, and does not reflect the decision to standardise key terms across different editions of Freges works published by Blackwell. The decision was based on the principle of exegetical neutrality, namely that if at any point in a text there is a passage that raises for the native speaker legitimate questions of exegesis, then, if at all possible, a translator should strive to confront the reader of his version with the same questions of exegesis and not produce a version which in his mind resolves those questions. The term meaning best captures the standard German meaning of Bedeutung, and Freges own use of the term sounds as odd when translated into English as it does in German. Moreover, meaning captures Freges early use of Bedeutung well, and it would be problematic to translate Freges early use as meaning and his later use as reference, suggesting a change in terminology not evident in the original German.


5.1. Precursors Antisthenes

The Greek philosopher Antisthenes, a pupil of Socrates, apparently distinguished "a general object that can be aligned with the meaning of the utterance” from" a particular object of extensional reference." This "suggests that he makes a distinction between sense and reference." The principal basis of this claim is a quotation in Alexander of Aphrodisiass" Comments on Aristotles Topics” with a three-way distinction:

  • an object external to the semantic medium, περὶ οὗ λέγουσιν
  • the direct indication of a thing, σημαίνειν. τὸ.
  • the semantic medium, δι ὧν λέγουσι

5.2. Precursors Stoicism

The Stoic theory of lekta refers to a correspondence between speech and the object referred to by the speech, as distinct from the speech itself. This has been cited as an anticipation of the distinction between sense and reference.


5.3. Precursors John Stuart Mill

The sense-reference distinction is commonly confused with that between connotation and denotation, which originates with John Stuart Mill. According to Mill, a common term like white denotes all white things, as snow, paper. But according to Frege, a common term does not refer to any individual white thing, but rather to an abstract concept Begriff. We must distinguish between the relation of reference, which holds between a proper name and the object it refers to, such as between the name Earth, and the planet Earth, and the relation of falling under, such as when the Earth falls under the concept planet. The relation of a proper name to the object it designates is direct, whereas a word like planet has no such direct relation to the Earth at all, but only to a concept that the Earth falls under. Moreover, judging of anything that it falls under this concept is not in any way part of our knowledge of what the word planet means. The distinction between connotation and denotation is closer to that between concept and object, than to that between sense and reference.

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