Rudolf Carnap
Rudolf Carnap | |
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UCLA | |
Theses |
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Doctoral advisor | Bruno Bauch (Ph.D. advisor)[4] Moritz Schlick (Dr. phil. hab.)[4] |
Other academic advisors | Gottlob Frege Heinrich Rickert[5] |
Doctoral students | Abner Shimony David Kaplan |
Other notable students | Carl Gustav Hempel Peter G. Ossorio Herbert A. Simon Raymond Smullyan Yehoshua Bar-Hillel |
Main interests | Logic · Epistemology Philosophy of science Semantics |
Notable ideas | List
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Rudolf Carnap (
Biography
Carnap's father had risen from being a poor ribbon-weaver to be the owner of a ribbon-making factory. His mother came from an academic family; her father was an educational reformer and her oldest brother was the
He began his formal education at the Barmen Gymnasium and the Carolo-Alexandrinum Gymnasium in Jena.[24] From 1910 to 1914, he attended the University of Jena, intending to write a thesis in physics. He also intently studied Immanuel Kant's Critique of Pure Reason during a course taught by Bruno Bauch, and was one of very few students to attend Gottlob Frege's courses in mathematical logic.
During his university years he became enthralled with the German Youth Movement.[5]
While Carnap held moral and political opposition to
Frege's course exposed him to Bertrand Russell's work on logic and philosophy, which put a sense of the aims to his studies. He accepted the effort to surpass traditional philosophy with logical innovations that inform the sciences. He wrote a letter to Russell, who responded by copying by hand long passages from his Principia Mathematica for Carnap's benefit, as neither Carnap nor his university could afford a copy of this epochal work. In 1924 and 1925, he attended seminars led by Edmund Husserl,[25] the founder of phenomenology, and continued to write on physics from a logical positivist perspective.
Carnap discovered a kindred spirit when he met Hans Reichenbach at a 1923 conference. Reichenbach introduced Carnap to Moritz Schlick, a professor at the University of Vienna who offered Carnap a position in his department, which Carnap accepted in 1926. Carnap thereupon joined an informal group of Viennese intellectuals that came to be known as the Vienna Circle, directed largely by Schlick and including Hans Hahn, Friedrich Waismann, Otto Neurath, and Herbert Feigl, with occasional visits by Hahn's student Kurt Gödel. When Wittgenstein visited Vienna, Carnap would meet with him. He (with Hahn and Neurath) wrote the 1929 manifesto of the Circle, and (with Hans Reichenbach) initiated the philosophy journal Erkenntnis.
In February 1930
In 1931, Carnap was appointed Professor at the German
Carnap, whose
After a stint at the
Carnap taught himself
Carnap had four children by his first marriage to Elizabeth Schöndube, which ended in divorce in 1929. He married his second wife, Elizabeth Ina Stöger, in 1933.[21] Ina committed suicide in 1964.
Philosophical work
Below is an examination of the main topics in the evolution of the philosophy of Rudolf Carnap. It is not exhaustive, but it outlines Carnap's main works and contributions to modern epistemology and philosophy of logic.
Der Raum
From 1919 to 1921, Carnap worked on a doctoral thesis called Der Raum: Ein Beitrag zur Wissenschaftslehre (Space: A Contribution to the Theory of Science, 1922). In this dissertation on the
Der Logische Aufbau der Welt
From 1922 to 1925, Carnap worked on a book which became one of his major works, namely Der logische Aufbau der Welt (translated as The Logical Structure of the World, 1967), which was accepted in 1926 as his
In the Aufbau, Carnap wants to display the logical and conceptual structure with which all scientific (factual) statements can be organized. Carnap gives the label "constitution theory" to this epistemic-logical project. It is a constructive undertaking that systematizes scientific knowledge according to the notions of symbolic logic. Accordingly, the purpose of this constitutional system is to identify and discern different classes of scientific concepts and to specify the logical relations that link them. In the Aufbau, concepts are taken to denote objects, relations, properties, classes and states. Carnap argues that all concepts must be ranked over a hierarchy. In that hierarchy, all concepts are organized according to a fundamental arrangement where concepts can be reduced and converted to other basic ones. Carnap explains that a concept can be reduced to another when all sentences containing the first concept can be transformed into sentences containing the other. In other words, every scientific sentence should be translatable into another sentence such that the original terms have the same reference as the translated terms. Most significantly, Carnap argues that the basis of this system is psychological. Its content is the "immediately given", which is made of basic elements, namely perceptual experiences. These basic elements consist of conscious psychological states of a single human subject. In the end, Carnap argues that his constitutional project demonstrates the possibility of defining and uniting all scientific concepts in a single conceptual system on the basis of a few fundamental concepts.
Overcoming metaphysics
From 1928 to 1934, Carnap published papers (Scheinprobleme in der Philosophie, 1928; translated as Pseudoproblems in Philosophy, 1967) in which he appears overtly skeptical of the aims and methods of metaphysics, i.e. the traditional philosophy that finds its roots in mythical and religious thought. Indeed, he discusses how, in many cases, metaphysics is made of meaningless discussions of pseudo-problems. For Carnap, a pseudo-problem is a philosophical question which, on the surface, handles concepts that refer to our world while, in fact, these concepts do not actually denote real and attested objects. In other words, these pseudo-problems concern statements that do not, in any way, have empirical implications. They do not refer to states of affairs and the things they denote cannot be perceived. Consequently, one of Carnap's main aim has been to redefine the purpose and method of philosophy. According to him, philosophy should not aim at producing any knowledge transcending the knowledge of science. In contrast, by analyzing the language and propositions of science, philosophers should define the logical foundations of scientific knowledge. Using symbolic logic, they should explicate the concepts, methods and justificatory processes that exist in science.
Carnap believed that the difficulty with traditional philosophy lay in the use of concepts that are not useful for science. For Carnap, the scientific legitimacy of these concepts was doubtful, because the sentences containing them do not express facts. Indeed, a logical analysis of those sentences proves that they do not convey the meaning of states of affairs. In other words, these sentences are meaningless. Carnap explains that to be meaningful, a sentence should be factual. It can be so, for one thing, by being based on experience, i.e. by being formulated with words relating to direct observations. For another, a sentence is factual if one can clearly state what are the observations that could confirm or disconfirm that sentence. After all, Carnap presupposes a specific criterion of meaning, namely the Wittgensteinian principle of verifiability. Indeed, he requires, as a precondition of meaningfulness, that all sentences be verifiable, which implies that a sentence is meaningful only if there is a way to verify if it is true or false. To verify a sentence, one needs to expound the empirical conditions and circumstances that would establish the truth of the sentence. As a result, it is clear for Carnap that metaphysical sentences are meaningless. They include concepts like "god", "soul" and "the absolute" that transcend experience and cannot be traced back or connected to direct observations. Because those sentences cannot be verified in any way, Carnap suggests that science, as well as philosophy, should neither consider nor contain them.
The logical analysis of language
At that point in his career, Carnap attempted to develop a full theory of the logical structure of scientific language. This theory, exposed in Logische Syntax der Sprache (1934; translated as The Logical Syntax of Language, 1937) gives the foundations to his idea that scientific language has a specific formal structure and that its signs are governed by the rules of deductive logic. Moreover, the theory of logical syntax expounds a method with which one can talk about a language: it is a formal meta-theory about the pure forms of language. In the end, because Carnap argues that philosophy aims at the logical analysis of the language of science and thus is the logic of science, the theory of the logical syntax can be considered as a definite language and a conceptual framework for philosophy.
The logical syntax of language is a formal theory. It is not concerned with the contextualized meaning or the truth-value of sentences. In contrast, it considers the general structure of a given language and explores the different structural relations that connect the elements of that language. Hence, by explaining the different operations that allow specific transformations within the language, the theory is a systematic exposition of the rules that operate within that language. In fact, the basic function of these rules is to provide the principles to safeguard coherence, to avoid contradictions and to deduce justified conclusions. Carnap sees language as a calculus. This calculus is a systematic arrangement of symbols and relations. The symbols of the language are organized according to the class they belong to and it is through their combination that we can form sentences. The relations are different conditions under which a sentence can be said to follow, or to be the consequence, of another sentence. The definitions included in the calculus state the conditions under which a sentence can be considered of a certain type and how those sentences can be transformed. We can see the logical syntax as a method of formal transformation, i.e. a method for calculating and reasoning with symbols.
It is in the logical syntax that Carnap introduces his notable principle of tolerance. This principle suggests that there is no moral in logic. When it comes to using a language, there is no good or bad, fundamentally true or false. In this perspective, the philosopher's task is not to bring authoritative interdicts prohibiting the use of certain concepts. In contrast, philosophers should seek general agreements over the relevance of certain logical devices. According to Carnap, those agreements are possible only through the detailed presentation of the meaning and use of the expressions of a language. In other words, Carnap believes that every logical language is correct only if this language is supported by exact definitions and not by philosophical presumptions. Carnap embraces a formal conventionalism. That implies that formal languages are constructed and that everyone is free to choose the language it finds more suited to his purpose. There should not be any controversy over which language is the correct language; what matters is agreeing over which language best suits a particular purpose. Carnap explains that the choice of a language should be guided according to the security it provides against logical inconsistency. Furthermore, practical elements like simplicity and fruitfulness in certain tasks influence the choice of a language. Clearly enough, the principle of tolerance was a sophisticated device introduced by Carnap to dismiss any form of dogmatism in philosophy.
Inductive logic
After having considered problems in semantics, i.e. the theory of the concepts of meaning and truth (Foundations of Logic and Mathematics, 1939; Introduction to Semantics, 1942; Formalization of Logic, 1943), Carnap turned his attention to the subject of probability and inductive logic. His views on that subject are for the most part exposed in Logical foundations of probability (1950) where Carnap aims to give a sound logical interpretation of probability. Carnap thought that according to certain conditions, the concept of probability had to be interpreted as a purely logical concept. In this view, probability is a basic concept anchored in all inductive inferences, whereby the conclusion of every inference that holds without deductive necessity is said be more or less likely to be the case. In fact, Carnap claims that the problem of induction is a matter of finding a precise explanation of the logical relation that holds between a hypothesis and the evidence that supports it. An inductive logic is thus based on the idea that probability is a logical relation between two types of statements: the hypothesis (conclusion) and the premises (evidence). Accordingly, a theory of induction should explain how, by pure logical analysis, we can ascertain that certain evidence establishes a degree of confirmation strong enough to confirm a given hypothesis.
Carnap was convinced that there was a logical as well as an empirical dimension in science. He believed that one had to isolate the experiential elements from the logical elements of a given body of knowledge. Hence, the empirical concept of frequency used in statistics to describe the general features of certain phenomena can be distinguished from the analytical concepts of probability logic that merely describe logical relations between sentences. For Carnap, the statistical and the logical concepts must be investigated separately. Having insisted on this distinction, Carnap defines two concepts of probability. The first one is logical and deals with the degree to which a given hypothesis is confirmed by a piece of evidence. It is the degree of confirmation. The second is empirical, and relates to the long run rate of one observable feature of nature relative to another. It is the relative frequency. Statements belonging to the second concepts are about reality and describe states of affairs. They are empirical and, therefore, must be based on experimental procedures and the observation of relevant facts. On the contrary, statements belonging to the first concept do not say anything about facts. Their meaning can be grasped solely with an analysis of the signs they contain. They are analytical sentences, i.e. true by virtue of their logical meaning. Even though these sentences could refer to states of affairs, their meaning is given by the symbols and relations they contain. In other words, the probability of a conclusion is given by the logical relation it has to the evidence. The evaluation of the degree of confirmation of a hypothesis is thus a problem of meaning analysis.
Clearly, the probability of a statement about relative frequency can be unknown; because it depends on the observation of certain phenomena, one may not possess the information needed to establish the value of that probability. Consequently, the value of that statement can be confirmed only if it is corroborated with facts. In contrast, the probability of a statement about the degree of confirmation could be unknown, in the sense that one may miss the correct logical method to evaluate its exact value. But, such a statement can always receive a certain logical value, given the fact that this value only depends on the meaning of its symbols.
Primary source materials
The Rudolf Carnap Papers contain thousands of letters, notes and drafts, and diaries. The majority of his papers were purchased from his daughter, Hanna Carnap-Thost in 1974, by the University of Pittsburgh, with subsequent further accessions. Documents that contain financial, medical, and personal information are restricted.[29] These were written over his entire life and career. Carnap used the mail regularly to discuss philosophical problems with hundreds of others. The most notable were: Herbert Feigl, Carl Gustav Hempel, Felix Kaufmann, Otto Neurath, and Moritz Schlick. Photographs are also part of the collection and were taken throughout his life. Family pictures and photographs of his peers and colleagues are also stored in the collection. Some of the correspondence is considered notable and consist of his student notes, his seminars with Frege, (describing the Begriffsschrift and the logic in mathematics). Carnap's notes from Russell's seminar in Chicago, and notes he took from discussions with Tarski, Heisenberg, Quine, Hempel, Gödel, and Jeffrey are also part of the University of Pittsburgh Library System's Archives and Special Collections. Digitized contents include:
- Notes (old), 1958–1966[30]
- More than 1,000 pages of lecture outlines are preserved that cover the courses that Carnap taught in the United States, Prague, and Vienna. Drafts of his published works and unpublished works are part of the collection. Additional Carnap materials can be found throughout the Archives of Scientific Philosophy at the University of Pittsburgh.
- Manuscript drafts and typescripts both for his published works and for many unpublished papers and books. A partial listing include his first formulations of his Aufbau.
Much material is written in an older German shorthand, the Stolze-Schrey system. He employed this writing system extensively beginning in his student days.[29] Some of the content has been digitized and is available through the finding aid. The University of California also maintains a collection of Rudolf Carnap Papers. Microfilm copies of his papers are maintained by the Philosophical Archives at the University of Konstanz in Germany.[31]
Selected publications
- 1922. Der Raum: Ein Beitrag zur Wissenschaftslehre, doctoral thesis, published as a monograph supplement to the Kant-Studien journal).
- English translation: "Space: A Contribution to the Theory of Science" (2005 draft), published version in: The Collected Works of Rudolf Carnap, Volume 1: Early Writings (2019) pp. 21–208
- 1926. Physikalische Begriffsbildung. Karlsruhe: Braun.
- English translation: "Physical Concept Formation" (1992 draft), published version in: Collected Works (2019) pp. 339–440
- 1928. Scheinprobleme in der Philosophie (Pseudoproblems in Philosophy). Berlin: Weltkreis-Verlag.
- 1928. habilitation thesis). Leipzig: Felix Meiner Verlag.
- English translation: Rolf A. George, 1967. ISBN 0-812-69523-2
- English translation: Rolf A. George, 1967.
- 1929. Abriss der Logistik, mit besonderer Berücksichtigung der Relationstheorie und ihrer Anwendungen.[33]
- (Revised) English translation: Introduction to Symbolic Logic (1958)
- 1931. "Überwindung der Metaphysik durch logische Analyse der Sprache" (PDF). Erkenntnis. 2: 219–241. 1931. S2CID 144658746.
- English translation: ISBN 978-0029011300
- English translation:
- 1934. Logische Syntax der Sprache.
- English translation: 1937, The Logical Syntax of Language. Kegan Paul.[34]
- 1935. Philosophy and Logical Syntax. Bristol UK: Thoemmes. Excerpt.
- 1939, Foundations of Logic and Mathematics in International Encyclopedia of Unified Science, Vol. I, No. 3. University of Chicago Press.[35]
- 1942. Introduction to Semantics. Harvard Uni. Press.
- 1943. Formalization of Logic. Harvard Uni. Press.
- 1945. "On Inductive Logic" in Philosophy of Science, Vol. 12, pp. 72–97.
- 1945. "The Two Concepts of Probability" Philosophy and Phenomenological Research, Vol. 5, No. 4, pp.513–532.
- 1947. "On the Application of Inductive Logic" in Philosophy and Phenomenological Research, Vol. 8, pp.133–148.
- 1947. Meaning and Necessity: a Study in Semantics and Modal Logic. University of Chicago Press. [enlarged ediition published in 1956]
- 1950, (1962 2nd ed:) Logical Foundations of Probability. University of Chicago Press. pp. 3–15.
- 1950. "Empiricism, Semantics, Ontology", Revue Internationale de Philosophie 4: 20–40. reprinted in: Meaning and Necessity (1956), and in (ed.) Copi, Irving M. Contemporary readings in logical theory (1967).
- 1952. The Continuum of Inductive Methods. University of Chicago Press.
- 1958. ISBN 9780486604534 [revised and translated version of Abriss der Logistik(1929)]
- 1962. "The Aim of Inductive Logic" in (eds.) Nagel, Suppes, and Tarski, Logic, Methodology and Philosophy of Science Stanford,, pp 303–318 (revised and expanded in Carnap & Jeffrey 1971).[36]
- 1963,
- 1966. An Introduction to the Philosophy of Science. Basic Books.
- 1966. Philosophical Foundations of Physics. Martin Gardner, ed. Basic Books. Online excerpt.
- 1971. Studies in Inductive Logic and Probability, Vol. 1. with Jeffrey, R. C, University of California Press.[36]
- 1977. Two Essays on Entropy. Shimony, Abner, ed. University of California Press.
- 1980. "A Basic System of Inductive Logic Part II" in: Jeffrey, R. C. (ed.) Studies in Inductive Logic and Probability, Vol. 2. . University of California Press.[38]
- 2000. Untersuchungen zur Allgemeinen Axiomatik. Edited from unpublished manuscript by T. Bonk and J. Mosterín. Darmstadt: Wissenschaftliche Buchgesellschaft. 167 ISBN 3-534-14298-5..
- 2017, “Value Concepts (1958)”, Synthese, 194(1): 185–194.
- 2019. Rudolf Carnap: Early Writings, A.W. Carus, Michael Friedman, Wolfgang Kienzler, Alan Richardson, and Sven Schlotter (eds.), (The Collected Works of Rudolf Carnap, 1), New York: Oxford University Press.[32]
*For a more complete listing see Carnap’s Works in "Linked bibliography". [39]
Filmography
- Interview with Rudolf Carnap, German TV, 1964[40]
See also
- Definitions of philosophy
- Second Conference on the Epistemology of the Exact Sciences
- Second Davos Hochschulkurs
References
- ^ "Review of Gonzalo Rodriguez-Pereyra, Resemblance Nominalism: A Solution to the Problem of Universals" – ndpr.nd.edu
- ^ Carnap, R. (1934), "On the Character of Philosophic Problems (Über den Charakter der philosophischen Probleme)," translation by W. M. Malisoff, Philosophy of Science, 1, pp. 5–19.
- ^ a b Zalta, Edward N. (ed.). "Behaviorism". Stanford Encyclopedia of Philosophy.
- ^ a b c d A. W. Carus, Michael Friedman, Wolfgang Kienzler, Alan Richardson, Sven Schlotter (eds.), Rudolf Carnap: Early Writings: The Collected Works of Rudolf Carnap, Volume 1, Oxford University Press, 2019, pp. xiii–xiv.
- ^ a b c d "Rudolf Carnap" entry by Hannes Leitgeb, André Carus in the Stanford Encyclopedia of Philosophy
- ^ Physicalism (Stanford Encyclopedia of Philosophy)
- ^ Arthur Sullivan, The Constitutive A Priori: Developing and Extending an Epistemological Framework, Lexington Books, 2018, p. 106.
- ^ Rudolf Carnap, The Logical Syntax of Language, Routledge & Kegan Paul, 1937, pp. 13–14.
- ^ A. W. Carus, Carnap and Twentieth-Century Thought: Explication as Enlightenment, Cambridge University Press, 2007, p. 222.
- ^ A. W. Carus, Carnap and Twentieth-Century Thought: Explication as Enlightenment, Cambridge University Press, 2007, pp. 223 and 227.
- ^ Thomas Uebel, Empiricism at the Crossroads: The Vienna Circle's Protocol-Sentence Debate Revisited, Open Court, 2015, p. 142.
- ^ Steve Awodey pronounces Carnap's Gabelbarkeitssatz-related pursuits "ill-fated" (Steve Awodey, "Structuralism, Invariance, and Univalence" (March 4, 2014)).
- ^ "Structural Realism": entry by James Ladyman in the Stanford Encyclopedia of Philosophy
- ^ a b c Carnap, Rudolf – Internet Encyclopedia of Philosophy
- ^ Rudolf Carnap, "Überwindung der Metaphysik durch logische Analyse der Sprache", Erkenntnis II (1932): 219–241.
- .
- JSTOR 4107023.
- ^ Rudolf Carnap (1966), An Introduction to the Philosophy of Science, Basic Books, p. 220.
- ISBN 978-0-470-52278-3.
- ^ "Carnap". Random House Webster's Unabridged Dictionary.
- ^ ISBN 9780520068476.
- ^ Biography – UW Departments Web Server
- ^ "Carnap had a modest but deeply religious family background, which might explain why, although he later became an atheist, he maintained a respectful and tolerant attitude in matters of faith throughout his life." Buldt, Bernd: "Carnap, Paul Rudolf", Complete Dictionary of Scientific Biography Vol. 20 p. 43. Detroit: Charles Scribner's Sons, 2008.
- ^ Mormann 2000, p. 14.
- ^ Smith, D. W., and Thomasson, Amie L. (eds.), 2005, Phenomenology and Philosophy of Mind. Oxford and New York: Oxford University Press, p. 8 n. 18.
- ^ Rand, Rose. "Reading Notes and Summaries on Works by Rudolph Carnap, 1932 and Undated" (PDF). Rose Rand Papers. Special Collections Department, University of Pittsburgh. Retrieved May 16, 2013.
- ISBN 9780812698374.
- ^ Christian Damböck (ed.), Influences on the Aufbau, Springer, p. 55.
- ^ a b "Guide to the Rudolf Carnap Papers, 1904–2007 ASP.1974.01 ULS Archives & Special Collections". Retrieved December 2, 2015.
- ^ "AS Notes (old), 1958–1966 Box 19, Folder 7 Rudolf Carnap Papers, 1905–1970, ASP.1974.01, Special Collections Department, University of Pittsburgh" (PDF). Retrieved December 2, 2015.
- ^ "Finding Aid for the Rudolf Carnap papers, 1920–1968". Retrieved December 2, 2015.
- ^ ISSN 0026-4423. Archived from the original(PDF) on September 21, 2020.
- .
- .
- .
- ^ ISSN 0031-8248.are taken into account explicitly), and what remains the same is so fundamental to Carnap's view that it bears rereading.
The lead article in the book is a revision of Carnap's "Inductive Logic and Rational Decisions," the first version of which was printed in Nagel, Suppes, and Tarski, Logic, Methodology and Philosophy of Science (Stanford: 1962, as "The Aim of Inductive Logic". Its contents will perhaps be familiar to most readers of this book, but there are many important revisions (the views of De Finetti
- ^ *This volume concludes with Carnap's "Replies and Systematic Expositions" (pp. 857–1012) and then a Bibliography that includes an annotated listing of his published writings up to 1961 and a listing of works then forthcoming. Essay contributors included, amongst others, Karl Popper, Herbert Feigl, A.J. Ayer, Donald Davidson, W.V. Quine, Carl G. Hempel and Hilary Putnam. A list of contents can be found here,
- JSTOR 2184531.
The first volume of this series appeared shortly after Carnap's death. Carnap's own contribution to Volume II is a continuation of "A Basic System of Inductive Logic" which began in Volume I. All but the final two sections were completed by Carnap prior to his death. Sections 20 and 21 are rough drafts which Carnap had not thought ready for publication. Professor Jeffrey is to be congratulated for having included these rough drafts in the volume. They are the most interesting portions of the Carnap essay.
- ^ "Linked bibliography for the SEP article 'Rudolf Carnap.'". PhilPapers. Retrieved January 11, 2024.
- ^ Online version in three parts: 1, 2, 3.
Sources
- Richard Creath, Michael Friedman, ed. (2007). The Cambridge Companion to Carnap. Cambridge University Press. ISBN 978-0521840156.
- Roger F Gibson, ed. (2004). The Cambridge companion to Quine. Cambridge University Press. ISBN 0521639492.
- Ivor Grattan-Guinness, 2000. In Search of Mathematical Roots. Princeton Uni. Press.
- Thomas Mormann, 2000. Rudolf Carnap. C. H. Beck.
- Willard Quine
- 1951, "Two Dogmas of Empiricism." The Philosophical Review 60: 20–43. Reprinted in his 1953 From a Logical Point of View. Harvard University Press.
- 1985, The Time of My Life: An Autobiography. MIT Press.
- Richardson, Alan W., 1998. Carnap's construction of the world: the Aufbau and the emergence of logical empiricism. Cambridge Uni. Press.
- Schilpp, P. A., ed., 1963. The Philosophy of Rudolf Carnap. LaSalle IL: Open Court.
- Spohn, Wolfgang, ed., 1991. Erkenntnis Orientated: A Centennial Volume for Rudolf Carnap and Hans Reichenbach. Kluwer Academic Publishers.
- 1991. Logic, Language, and the Structure of Scientific Theories: Proceedings of the Carnap-Reichenbach Centennial, University of Konstanz, May 21–24, 1991. University of Pittsburgh Press.
- Wagner, Pierre, ed., 2009. Carnap's Logical Syntax of Language. Palgrave Macmillan.
- Wagner, Pierre, ed., 2012. Carnap's Ideal of Explication and Naturalism. Palgrave Macmillan.
Further reading
- Holt, Jim, "Positive Thinking" (review of Karl Sigmund, Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science, Basic Books, 449 pp.), The New York Review of Books, vol. LXIV, no. 20 (21 December 2017), pp. 74–76.
- Psillos, Stathis, "Rudolf Carnap's 'Theoretical Concepts in Science'", Studies in History and Philosophy of Science Part A 31(1) (2000):151–172.
External links
- "Rudolf Carnap" entry by Hannes Leitgeb, André Carus in the Stanford Encyclopedia of Philosophy
- Murzi, Mauro. "Rudolf Carnap". Internet Encyclopedia of Philosophy.
- Cresswell, M.J. "Carnap's Modal Logic". Internet Encyclopedia of Philosophy.
- Rudolf Carnap Webpage and Directory of Internet Resources
- Homepage of the Collected Works of Rudolf Carnap – Department of Philosophy, Carnegie Mellon University
- Precis of Carnap's philosophy
- The Life of Rudolf Carnap, Philosophy at RBJones.com
- R. Carnap: "Von der Erkenntnistheorie zur Wissenschaftslogik", Paris Congress in 1935, Paris, 1936.
- R. Carnap: "Über die Einheitssprache der Wissenschaft", Paris Congress in 1935, Paris, 1936.
- R. Carnap: "Wahrheit und Bewährung", Paris Congress in 1935, Paris, 1936.
- Rudolf Carnap Papers: (Rudolf Carnap Papers, 1905–1970, ASP.1974.01, Special Collections Department, University of Pittsburgh.)
- Das Fremdpsychische bei Rudolf Carnap (German) by Robert Bauer.
- FBI file on Rudolph Carnap
- Luchte, James (2007). "Martin Heidegger and Rudolf Carnap: Radical Phenomenology, Logical Positivism and the Roots of the Continental/Analytic Divide". .
- RUDOLF CARNAP, PHILOSOPHER, DIES obituary in The New York Times, 15 September 1970
- Homage to Rudolf Carnap (1970) by Feigl, Hempel, Jeffrey, Quine et al. reprinted in frontmatter of RUDOLF CARNAP, LOGICAL EMPIRICIST (1975)
- [Audio] Carnap lecturing on 'Theoretical Concepts in Science' at the meeting of the American Philosophical Association, Pacific Division, at Santa Barbara, California, on 29 December 1959.