CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Rudolf Lingens

fictional character created by the logician Gottlob Frege

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 11, 2026
Entity authorityQ7377245
Source-derived summary

Rudolph Lingens is a fictional character often used by contemporary analytic philosophers as a placeholder name in a hypothetical scenario which illustrates some feature of the indexicality of natural language. He was created by the logician Gottlob Frege in the course of one of the earliest systematic discussions of indexicals. A number of philosophers picking up on Frege's discussion of indexicals, notably John Perry, David Lewis, and Robert Stalnaker, have adopted Lingens to make their own points about indexicals.

De se attitudes

Lingens first appeared in Frege's influential essay 'Thought' ('Der Gedanke', published in Beiträge zur Philosophie des deutschen Idealismus I (1918–19), pp. 58–77). Mr. Lingens appears in the company of Leo Peter. Both are concerned with Dr. Gustav Lauben's having been wounded, and are later joined by Herbert Garner who is possessed of the knowledge that Gustav Lauben was born on 13 September 1875. Frege's discussion is concerned with how proper names and indexicals like 'I' function and how they are connected with the sense (or mode of presentation) that, on his account, each speaker who uses them associates with them.

Editorial summary

The public source identifies “Rudolf Lingens” as fictional character created by the logician Gottlob Frege. This brief keeps that definition visible, then builds a research path around Rudolf, Lingens and fictional.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1918, 1875—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Rudolf, Lingens and fictional providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Rudolf Lingens”, the useful work is to connect “fictional character created by the logician Gottlob Frege” to the records capable of establishing context and consequence.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 11, 2026. The linked authority identifier is Q7377245. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1918 and 1875.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Rudolf Lingens”, its source revision and the description used here.
  2. Expand the search: follow Rudolf Lingens primary sources, Rudolf Lingens archive and Rudolf research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Rudolf Lingens”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from Rudolf Lingens” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.