Juni Alonzo Church, Frege Gottlob. Der Gedanke. Beiträge zur Philosophie des deutschen Idealismus, vol. 1 no. 2, pp. 58–Frege Gottlob. Friedrich Ludwig Gottlob Frege was a German philosopher, logician, and mathematician. He is .. “Der Gedanke: Eine logische Untersuchung” (“The Thought: A Logical Inquiry”), in Beiträge zur Philosophie des Deutschen Idealismus I: 58– Supplement to Gottlob Frege Gall and E. Winter, Die analytische Geometrie des Punktes und der Geraden und ihre Anwendung auf .. [a] ‘Der Gedanke .

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Jonathan Lowe John R. Cremonese,also in KS. The sense of a sentence is thus the mode of presentation of its truth-value; that is, on a natural reading, the sentence’s truth-conditions. This was the position I was placed in gedannke a letter of Mr.

Gottlob Frege

This objection is now usually referred to as the Caesar problem — somewhat inaccurately, as Frege uses Julius Caesar as an example in arguing against a slightly different proposal for a definition.

Clearly, however, these expressions do not present that concept in the same way. However, he still had time to work on his first major work in logic, which was published in under the title Begriffsschrift, eine der arithmetischen nachgebildete Formelsprache des reinen Denkens “Concept-Script: Aberdeen University Press, But its use in recent philosophy is to name.

Functions grdanke unsaturated or incomplete in the sense that they carry argument places that need to be filled; an object is anything that is not a function.

Let us consider the dsr of 5 and 6 more closely. Frege’s Conception of Numbers as Objects. Bertrand Russell, just when the printing of this volume was nearing its completion.

Gottlob Frege (1848—1925)

To say that the concept F is instantiated zero times is to say gotttlob there are no objects that instantiate For, equivalently, that everything does not instantiate F. First Series,” in CPpp. The English denominate is literally to name, German benennenbut broadly to assign things freye categories, which much of linguistic philosophy tries to do with set theory and logic. I’m indebted to Wolfgang Kienzler for suggesting several important improvements to this catalog. Friedrich Frommann, ; reprinted in Angelelli [] pp.


A frequently noted example is that Aristotle’s logic is unable to represent mathematical statements like Euclid’s theorema fundamental statement of number theory that there are an infinite number of prime numbers. By contrast, the sense or “Sinn” associated with a complete sentence is the thought it expresses.

Equality undergoes a radical change in interpretation between the time of Begriffsschrift and that of Grundgesetze. Hegel Martin Heidegger Heraclitus R. To start with, there is the familiar problem about the status of second-order logic itself, quite independently of HP. Philosophical Library SalmonN.

In “Funktion und Begriff”, the distinction between the sense and reference of signs in language is first made in regard to mathematical equations. In any case Frege proposes an explicit definition of “the number belonging to F ” that in effect amounts to taking this number to be the equivalence class of F under the equivalence relation of equinumerosity which is explained in terms of the existence of a one-one and onto correlation: Quine, Willard Van Orman.

You are commenting using your WordPress. The stratification becomes more complicated with functions of more than one argument, since there exist, for instance, functions of two arguments with one argument place for unary first-level functions and one argument place for objects an instance being the application function, which maps a unary first-level function f and an object a to the result f a of applying f to aand so on.

Such contexts can be referred to as “oblique contexts”, contexts in which the reference of an expression is shifted from its customary reference to its customary sense. Basic Laws of Arithmetic.

Gottlob Frege > Chronological Catalog of Frege’s Work (Stanford Encyclopedia of Philosophy)

Sense and Referencep. Essays in Honor of Leonard Linsky. Edited and translated by Terrell W. Variables and quantifiers are used to express generalities. It is easy to define the relation of membership of a set or extension in Frege’s system; Russell then drew attention to “the set of things x that are such that x is not a member of x “. As we shall see belowFrege was also committed to other logical entities such as senses and thoughts.


Note Leibniz imagined gotrlob a new language and a machine that would reason using that language. Having defined one is this way, Frege is able to define two. Rand as “About the Law of Inertia” in Synthese 13pp. Werk und WirkungPaderborn: Studies on Gottlob Frege and Traditional Philosophy.

Sign in to use this feature. Review of Georg Cantor: Learn more about citation styles Citation styles Encyclopedia. It was divided into a “primary logic” and “secondary logic”, bifurcating its propositional and categorical elements, and could not deal adequately with multiple generalities.

Article Summary: “Der Gedanke” by Gottlob Frege | Analysis

Review of Philosophie der Arithmetikby Edmund Husserl. Through his publications, as well as through personal correspondence, Frege exerted a profound influence on Russell, who appears to have been the first major thinker to appreciate Frege’s achievements in logic. Modern Language Association http: Because the sense of a whole proposition is determined by the senses of the parts, and the reference of a whole proposition is determined by the parts, Frege claims that propositions in which such expressions appear are able to express thoughts, but are neither true nor false, because no references are determined for them.

Beliefs depend for their make-up on how certain objects and concepts are presented, not only on the objects and concepts themselves. Frege was motivated to introduce the sense-reference distinction to solve certain puzzles, chief among them 1 the apparent impossibility of informative identity statements and 2 the apparent failure of substitutivity in contexts of propositional attitudes.

Anybody who does this will attach another sense to the sentence “Aristotle was born in Stagira” than will a man who takes as the sense of the name: It is to say that there is a one-one mapping between the objects that instantiate F and the objects instantiating Gi. To Frege, selves — conscious entities that possess Ideas — cannot be explained in terms of Ideas.

Peter Geach, Blackwell,