Triple

T739686
Position Surface form Disambiguated ID Type / Status
Subject von Neumann paradox in set theory E15214 entity
Predicate relatedTo P37 FINISHED
Object Hausdorff paradox
The Hausdorff paradox is a result in set theory and geometry showing that a solid sphere in three-dimensional space can be decomposed into a finite number of disjoint pieces that can be reassembled, using only rotations, into two spheres identical to the original.
E15214 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Hausdorff paradox | Statement: [von Neumann paradox in set theory, relatedTo, Hausdorff paradox]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Hausdorff paradox
Context triple: [von Neumann paradox in set theory, relatedTo, Hausdorff paradox]
  • A. Cantor’s paradox
    Cantor’s paradox is a foundational result in set theory showing that the “set of all sets” cannot exist because its power set would have a strictly larger cardinality, leading to a contradiction.
  • B. von Neumann paradox in set theory
    The von Neumann paradox in set theory is a foundational result showing that, under certain group-theoretic conditions, a set can be decomposed and reassembled into paradoxical subsets of equal “size,” illustrating the counterintuitive consequences of the axiom of choice.
  • C. Burali-Forti paradox
    The Burali-Forti paradox is a foundational logical contradiction in set theory that arises from considering the set of all ordinal numbers, showing that such a totality cannot consistently exist as a set.
  • D. Brouwer fixed-point theorem
    The Brouwer fixed-point theorem is a fundamental result in topology stating that any continuous function from a compact convex set (such as a closed disk) to itself has at least one fixed point.
  • E. Russell’s paradox
    Russell’s paradox is a foundational logical contradiction in naive set theory that reveals problems with sets that contain themselves, leading to major developments in modern logic and the axiomatization of set theory.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Hausdorff paradox
Triple: [von Neumann paradox in set theory, relatedTo, Hausdorff paradox]
Generated description
The Hausdorff paradox is a result in set theory and geometry showing that a solid sphere in three-dimensional space can be decomposed into a finite number of disjoint pieces that can be reassembled, using only rotations, into two spheres identical to the original.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Hausdorff paradox
Target entity description: The Hausdorff paradox is a result in set theory and geometry showing that a solid sphere in three-dimensional space can be decomposed into a finite number of disjoint pieces that can be reassembled, using only rotations, into two spheres identical to the original.
  • A. Cantor’s paradox
    Cantor’s paradox is a foundational result in set theory showing that the “set of all sets” cannot exist because its power set would have a strictly larger cardinality, leading to a contradiction.
  • B. von Neumann paradox in set theory chosen
    The von Neumann paradox in set theory is a foundational result showing that, under certain group-theoretic conditions, a set can be decomposed and reassembled into paradoxical subsets of equal “size,” illustrating the counterintuitive consequences of the axiom of choice.
  • C. Burali-Forti paradox
    The Burali-Forti paradox is a foundational logical contradiction in set theory that arises from considering the set of all ordinal numbers, showing that such a totality cannot consistently exist as a set.
  • D. Brouwer fixed-point theorem
    The Brouwer fixed-point theorem is a fundamental result in topology stating that any continuous function from a compact convex set (such as a closed disk) to itself has at least one fixed point.
  • E. Russell’s paradox
    Russell’s paradox is a foundational logical contradiction in naive set theory that reveals problems with sets that contain themselves, leading to major developments in modern logic and the axiomatization of set theory.
  • F. None of above.

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69a49358aa308190adbc9b5a0a2adcf9 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4a5f3b6388190b5ca3fa31416b61a completed March 1, 2026, 8:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69a654e40b9c8190ab4314e63826d00a completed March 3, 2026, 3:26 a.m.
NEDg Description generation batch_69a65566f6848190a50c39d1fad2b42b completed March 3, 2026, 3:28 a.m.
NED2 Entity disambiguation (via description) batch_69a655f9c0f081909d0ede1c1b515f25 completed March 3, 2026, 3:31 a.m.
Created at: March 1, 2026, 7:37 p.m.