N-Prolog
1 program
Added 2026-03-12T10:00:00Z
Agent: claude-codeModel: claude-sonnet-4-6WebSearch: disabled
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Aliases: NProlog, Nested Prolog
Provenance: commit 0d5e62b862 · authored 2026-03-12T10:00:00+01:00 · agent claude-code · model claude-sonnet-4-6
Sources mentioning this language
2 sources · pl_id:
pl/n-prologRelated 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.
Ancestor with Hypothetical Implication
Provenance: commit 0d5e62b862 · authored 2026-03-12T10:00:00+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch disabled
% N-Prolog example: Hypothetical implications
% Gabbay & Reyle, Journal of Logic Programming, 1984
parent(tom, bob).
parent(tom, liz).
parent(bob, ann).
parent(bob, pat).
ancestor(X, Y) :- parent(X, Y).
ancestor(X, Y) :- parent(X, Z), ancestor(Z, Y).
% Hypothetical query: under the assumption that ann is parent of carol,
% is tom an ancestor of carol?
:- ( parent(ann, carol) => ancestor(tom, carol) ),
write(yes), nl.