Editing Rudolf Carnap (section)

==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.<ref name="ReferenceA">{{cite web|url=https://digital.library.pitt.edu/islandora/object/pitt:US-PPiU-asp197401/from_search/c71086abf60e1bf70984aa8545b163af-1|title=Guide to the Rudolf Carnap Papers, 1904–2007 ASP.1974.01 ULS Archives & Special Collections|access-date=2015-12-02}}</ref> 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<ref>
{{cite web 
| url = http://digital.library.pitt.edu/u/ulsmanuscripts/pdf/31735061848242.pdf|title= AS Notes (old), 1958–1966 Box 19, Folder 7 Rudolf Carnap Papers, 1905–1970, ASP.1974.01, Special Collections Department, University of Pittsburgh
| access-date = 2015-12-02 
 }}
</ref>

*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 Drafts of his published works and unpublished works are part of the collection.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 [https://pitt.libguides.com/c.php?g=12522&p=66312 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*Manuscript drafts and typescripts both for his published works and for many unpublished papers and books.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.<ref name="ReferenceA"/> Some of the content has been digitized and is available through the [https://digital.library.pitt.edu/islandora/object/pitt%3AUS-PPiU-asp197401/viewer 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.<ref>
{{cite web 
| title = Finding Aid for the Rudolf Carnap papers, 1920–1968 
| url = http://oac.cdlib.org/findaid/ark:/13030/tf7q2nb520/ 
| access-date = 2015-12-02  }}</ref>