Sledgehammer
E822904
Sledgehammer is an automated theorem-proving tool integrated into the Isabelle proof assistant that invokes external provers to help discharge proof obligations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sledgehammer canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9810057 — 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: Sledgehammer Context triple: [Isabelle, hasComponent, Sledgehammer]
-
A.
Sledgehammer
"Sledgehammer" is a 1986 hit single by English musician Peter Gabriel, renowned for its soulful sound and groundbreaking stop-motion music video.
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B.
Sledgehammer
"Sledgehammer" is a pop song by the girl group Fifth Harmony, known for its upbeat production and empowering breakup-themed lyrics.
-
C.
Jackhammer
Jackhammer is a professional wrestling finishing move popularized by Bill Goldberg, combining a vertical suplex with a powerful front slam.
-
D.
Brink
Brink is a tram stop on Amsterdam’s Amstelveenlijn serving the residential area around the Brink square in Amstelveen, Netherlands.
-
E.
Apex
Apex is a suburban town in North Carolina’s Research Triangle region, known for its historic downtown and high quality of life.
- 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: Sledgehammer Target entity description: Sledgehammer is an automated theorem-proving tool integrated into the Isabelle proof assistant that invokes external provers to help discharge proof obligations.
-
A.
Sledgehammer
"Sledgehammer" is a 1986 hit single by English musician Peter Gabriel, renowned for its soulful sound and groundbreaking stop-motion music video.
-
B.
Sledgehammer
"Sledgehammer" is a pop song by the girl group Fifth Harmony, known for its upbeat production and empowering breakup-themed lyrics.
-
C.
Jackhammer
Jackhammer is a professional wrestling finishing move popularized by Bill Goldberg, combining a vertical suplex with a powerful front slam.
-
D.
Brink
Brink is a tram stop on Amsterdam’s Amstelveenlijn serving the residential area around the Brink square in Amstelveen, Netherlands.
-
E.
Apex
Apex is a suburban town in North Carolina’s Research Triangle region, known for its historic downtown and high quality of life.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Isabelle component
ⓘ
automated theorem prover ⓘ |
| approach | hammer-style integration of ATPs into ITPs ⓘ |
| benefit |
bridges interactive and automated proving
ⓘ
reduces manual proof effort ⓘ |
| category |
Isabelle add-on
ⓘ
proof automation tool ⓘ |
| developedFor | Isabelle users ⓘ |
| developedIn | Standard ML NERFINISHED ⓘ |
| documentation | Isabelle reference manual NERFINISHED ⓘ |
| feature |
automatic lemma selection
ⓘ
parallel invocation of external provers ⓘ proof reconstruction in Isabelle ⓘ translation of higher-order goals to first-order logic ⓘ |
| field |
automated reasoning
ⓘ
formal methods ⓘ interactive theorem proving ⓘ |
| inputLanguage | Isabelle/HOL NERFINISHED ⓘ |
| integratedInto | Isabelle/Isar environment NERFINISHED ⓘ |
| introducedIn | Isabelle 2009 era ⓘ |
| invokes |
CVC4
NERFINISHED
ⓘ
E prover NERFINISHED ⓘ SPASS NERFINISHED ⓘ Vampire ⓘ Z3 NERFINISHED ⓘ |
| license | open source ⓘ |
| maintainedBy | Isabelle development team NERFINISHED ⓘ |
| nameOrigin | metaphor for powerful automated proof search ⓘ |
| output |
Isabelle proof scripts
ⓘ
Isar proof text ⓘ |
| partOf | Isabelle proof assistant NERFINISHED ⓘ |
| purpose |
assist interactive proof development
ⓘ
discharge proof obligations ⓘ |
| relatedTo | Isabelle/jEdit interface ⓘ |
| requires | configured external provers ⓘ |
| runsOn | same platforms as Isabelle ⓘ |
| supports |
Isabelle/HOL
NERFINISHED
ⓘ
higher-order logic reasoning via translation ⓘ |
| typicalUse |
finding proofs for difficult subgoals
ⓘ
suggesting lemmas and proof steps ⓘ |
| uses |
SMT solvers
ⓘ
external automated theorem provers ⓘ first-order theorem provers ⓘ |
| workflow |
reconstruct successful proofs in Isabelle
ⓘ
run external provers ⓘ translate goal and context to ATP format ⓘ |
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: Sledgehammer Description of subject: Sledgehammer is an automated theorem-proving tool integrated into the Isabelle proof assistant that invokes external provers to help discharge proof obligations.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Isabelle