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– After his retirement in , Frege moved to Bad Kleinen, near Wismar, and managed to publish a number of important articles, “Der Gedanke” (“The Thought “.

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His most important teacher was Ernst Karl Abbe —; physicist, mathematician, and inventor.

Frege as Idealist and then Realist,” Fedanke 22 1—4: Frege also uses the distinction to solve what appears to be a difficulty with Leibniz’s law with regard to identity. Appleton-Century-Crofts FurthM. Frege’s conditional is not, like the modern connective, something that flanks statements to form a statement.

One could then consider numbers as “second-level concepts”, or concepts of concepts, which can be defined in purely logical terms.

Gottlob Frege

Frege’s logical ideas nevertheless spread through the writings of his student Rudolf Carnap — and other admirers, particularly Bertrand Russell and Ludwig Wittgenstein — Frege’s own term for such a language, “Begriffsschrift” was likely borrowed from a paper on Leibniz’s ideas written by Adolf Trendelenburg.

Kant and Fregeby Delbert Reed’. Himself Lutheran, Frege seems to have wanted to see all Jews expelled from Free, or at least deprived of certain political rights. Home About Logic Philosophy Politics. Wright, Basic Laws of Arithmetic: The expression, ” is a planet” has as its reference a function that yields as value the True when saturated by an object such as Saturn or Venus, but the False when saturated by a person or the number three.

Bynum in Bynum [] pp. As a philosopher of mathematics, Frege attacked the psychologistic appeal to mental explanations of the content of judgment of the meaning of sentences. In Frege’s gexanke, unlike objects, all functions are “unsaturated” insofar as they require arguments to yield values.

Frege uses the example of a specific sensed phenomenon: The values of such concepts could then be used as arguments to other functions. Thus, in the GrundlagenFrege espouses his famous context principleto “never ask for the meaning of a word in isolation, but only in the context of a proposition.


Yale University Press, To suggest that mathematics is the study simply of the formal system, is, in Frege’s eyes, to confuse the sign and thing signified. This insight was very important for Frege’s case for logicism, as Frege was able to show that it is possible to define what it means for a concept to be instantiated a certain number of times purely logically by making use of quantifiers and identity.

Nevertheless, it cannot be denied that Frege’s work in the gedankee of mathematics was important and insightful. Reflections on Frege’s Philosophy. Gabriel suggests the date of Bad KleinenMecklenburg-SchwerinGermany. White of Frege’s work in the German collection Hermes et al. Yet it is only by accounting for the more robust epistemic productivity that Frege means to ascribe to thinking, beyond its receptivity in grasping, that we can hope to take the full measure of Frege’s ambitious and revolutionary gsdanke for the epistemic significance of thinking itself: Leave a Reply Cancel reply Enter your comment here Previous logic had dealt with the logical constants andorif Those familiar with modern predicate logic will recognize the parallels between it and Frege’s logic.

They had at least two children, who unfortunately died young. The distinction between gedankd of functions involves what kind of arguments the functions take. Frege’s approach to providing a logical analysis of cardinality, the natural numbers, infinity and mathematical induction were groundbreaking, and have had a lasting importance within mathematical logic.

To purchase short term access, please sign in to your Oxford Academic account above. In effect, Frege invented axiomatic predicate logicin large part thanks to his invention of quantified variableswhich eventually became ubiquitous in mathematics and logic, and which solved the problem of multiple generality. Therein, Frege presented for the first time his invention of a new method for the construction cer a logical language.

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

But the sense of the word “Wales” is a part of the sense of the latter expression, but no part of the sense of the gedank name” of Prince Charles. Clarendon CopiI. Moreover, he claims that many of us seem to be able to use a name to refer to an individual even if we are unaware of any properties uniquely held by that individual. This leads to their positive account of Frege’s views on thinking itself Chapter 3followed by a discussion of Frege’s epistemology in light of these views Chapter 4.


One deck of cards contains fifty two cards, but each card consists of a multitude of atoms. Kaal in McGuinness [] p. While Frege believed that logic might prescribe laws about how people should think, logic is not the science of how people do think.

So far we have only considered the distinction as it applies to expressions that name some object including abstract objects, such as numbers. On Mill’s view, numbers must vrege taken to be conglomerations of objects. Frege was the first to understand a statement such as “all students are hardworking” as saying roughly the same as, “for all values of xif x is a student, then x is hardworking”. Essays in Honor of Henry M. Let me first situate Garavaso and Vassallo’s approach within recent Yedanke scholarship.

A thought, for example, has a truth-value regardless of whether or not anyone believes it and even whether or not anyone has gexanke it at all. Gottlob Frege – – Philosophical Review Principle of compositionalitycontext principlequantification theorypredicate calculuslogicismsense and referenceFrege’s puzzlesconcept and objectsortalThird Realmmediated reference theory Frege—Russell viewdescriptivist theory of namesredundancy theory of truth[6] set-theoretic definition of natural numbersHume’s principleBasic Law VFrege’s theoremDerr ontologyFrege—Geach problemlaw of trichotomytechnique for binding arguments [7].

According to the Introduction to Gabriel []these are Frege’s lecture notes for xer given at the University of Jena in the Summer Semester of Mind, New Series, Vol.