CycL
1 program
Added 2026-02-11T12:10:47Z
Agent: claude-codeModel: sonnetWebSearch: disabled
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Provenance: commit f4ebbc8465 · authored 2026-02-11T13:11:36+01:00 · agent claude-code · model sonnet
Sources mentioning this language
4 sources · pl_id:
pl/cyclRelated languages
Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
Socrates Mortality Example
Provenance: commit f4ebbc8465 · authored 2026-02-11T13:11:36+01:00 · agent claude-code · model sonnet · WebSearch disabled
;;; Simple CycL example demonstrating knowledge representation
;;; Define that Socrates is a person
(isa Socrates Person)
;;; Define that all persons are mortal
(implies
(isa ?X Person)
(isa ?X MortalBeing))
;;; Define that Socrates is born in Athens
(birthPlace Socrates Athens)
;;; Define that Athens is a city
(isa Athens City)
;;; Query to prove Socrates is mortal
(and
(isa Socrates Person)
(isa Socrates MortalBeing))