Peter Johnstone
E175025
Peter Johnstone is a British mathematician renowned for his influential work in category theory and topos theory.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Peter Johnstone canonical | 2 |
| Peter T. Johnstone | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1382998 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Peter Johnstone Context triple: [Saunders Mac Lane, coAuthor, Peter Johnstone]
-
A.
Nigel Shadbolt
Nigel Shadbolt is a British computer scientist and artificial intelligence researcher known for his leading role in promoting open data and digital governance.
-
B.
Ian Stewart
Ian Stewart is a British mathematician and prolific popular science writer known for his engaging books and articles on mathematics and its applications.
-
C.
Peter Godfrey
Peter Godfrey was a British-born actor and director known for his work in mid-20th-century film and television, particularly in Hollywood.
-
D.
Graham Stanton
Graham Stanton is a senior Royal Air Force officer who served as Air Officer Commanding-in-Chief of Fighter Command.
-
E.
Alasdair Steedman
Alasdair Steedman was a senior Royal Air Force officer who rose to high command, including leadership of the RAF’s Fighter Command.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Peter Johnstone Target entity description: Peter Johnstone is a British mathematician renowned for his influential work in category theory and topos theory.
-
A.
Nigel Shadbolt
Nigel Shadbolt is a British computer scientist and artificial intelligence researcher known for his leading role in promoting open data and digital governance.
-
B.
Alasdair Roberts
Alasdair Roberts is a Scottish folk musician and singer-songwriter known for his intricate guitar work, traditional balladry, and releases on independent labels such as Drag City.
-
C.
Ian Stewart
Ian Stewart is a British mathematician and prolific popular science writer known for his engaging books and articles on mathematics and its applications.
-
D.
Peter Godfrey
Peter Godfrey was a British-born actor and director known for his work in mid-20th-century film and television, particularly in Hollywood.
-
E.
Graham Stanton
Graham Stanton is a senior Royal Air Force officer who served as Air Officer Commanding-in-Chief of Fighter Command.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
academic
ⓘ
mathematician ⓘ person ⓘ |
| academicDiscipline | pure mathematics ⓘ |
| countryOfCitizenship | United Kingdom ⓘ |
| educatedAt |
University of Cambridge
ⓘ
linked to:
Cambridge University
|
| employer |
University of Cambridge
ⓘ
linked to:
Cambridge University
|
| fieldOfWork |
category theory
ⓘ
mathematics ⓘ topos theory ⓘ |
| gender | male ⓘ |
| hasOccupation |
researcher
ⓘ
university teacher ⓘ |
| knownFor |
work in category theory
ⓘ
work in topos theory ⓘ |
| languageOfWorkOrName | English ⓘ |
| memberOf | Department of Pure Mathematics and Mathematical Statistics, University of Cambridge ⓘ |
| nationality | British ⓘ |
| notableFor |
contributions to categorical logic
ⓘ
contributions to the foundations of topos theory ⓘ |
| notableWork |
Sketches of an Elephant: A Topos Theory Compendium
ⓘ
Stone Spaces ⓘ Topos Theory ⓘ |
| positionHeld | Professor of the Foundations of Mathematics ⓘ |
| workLocation | Cambridge ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Peter Johnstone Description of subject: Peter Johnstone is a British mathematician renowned for his influential work in category theory and topos theory.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Peter Johnstone
linked to: Peter Johnstone