Identity alone
Statement
If all one wants to know is whether someone is a knight or a knave, this can be tested by simply asking a question to which the answer is already known. In the film The Enigma of Kaspar Hauser, a character solves the puzzle of whether a man is a knight or a knave by suggesting asking the man "whether he was a tree frog".
Further reading
- Wikipedia, page 273102, revision 1371398723, Knights and Knaves, section Examples > Identity alone. adopted
About this page
| Tag | YJ50GEXEVR |
|---|---|
| URI | m2://YJ50GEXEVR |
| Kind | statement, proposition |
| Writing | W0 stub |
| Status | This copy of the site has no build data. Run m2 status YJ50GEXEVR. |
| Changed | 4 November 2026 |
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