https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/Head
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://www.nanopub.org/nschema#hasAssertion
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/assertion
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://www.nanopub.org/nschema#hasProvenance
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/provenance
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://www.nanopub.org/nschema#hasPublicationInfo
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/pubinfo
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.nanopub.org/nschema#Nanopublication
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/assertion
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
http://purl.org/dc/terms/description
Each Dryad file was retrieved by solving the Anubis fast challenge and following the redirect to the object store. SquamBase Limbs values were mapped with the pre-registered codebook: a leading integer is that count, limbless is 0, forelimbs-only or hindlimbs-only is 2, and reduced or four well-developed limbs is 4. Arthropod rows with Leg count greater than 4 were checked for a vertebrate class or order from the pre-registered list.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/Assessment
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
http://www.w3.org/2000/01/rdf-schema#comment
Measured: 0 counterexamples (squamate limb counts outside {0, 2, 4}, plus many-legged specimens coded vertebrate) (n = 11744, category strings mapped with the pre-registered codebook; leading integer wins when the cell starts with a digit). Interpretation: Scope maps 'blooded' to vertebrates and 'bloodless' to invertebrates. 'Feet' are paired locomotory limbs or walking legs, not digits. SquamBase categories follow Meiri's codebook: a numeric cell is that count; 'limbless' or 'absent' or 'none' maps to 0; 'forelimb only', 'hindlimb only', 'front only', 'hind only' or 'one pair' maps to 2; 'fully limbed', 'four', 'both pairs' or 'reduced' (short limbs, not an extra pair) maps to 4. A tiny vestige that the dataset itself calls limbless stays 0. Digit counts are ignored. Vertebrate coding in the arthropod file is a taxonomic field containing Vertebrata, Mammalia, Aves, Reptilia, Amphibia, Actinopterygii, Chondrichthyes, or an order in {Primates, Carnivora, Rodentia, Cetacea, Artiodactyla, Perissodactyla, Chiroptera, Squamata, Testudines, Crocodylia, Anura, Caudata, Gymnophiona, Perciformes, Cypriniformes, Siluriformes, Salmoniformes, Squaliformes, Rajiformes}.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
http://www.w3.org/2000/01/rdf-schema#label
Claim test of aristotle-ha01-08: supports, confidence 0.78
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
http://www.w3.org/2000/01/rdf-schema#seeAlso
https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/aristotle-biology/aristotle-ha01-08/result.json
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
http://www.w3.org/ns/prov#wasAttributedTo
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/admissibleDatasets
Species- or specimen-level public tables that state a limb or walking-leg count and a taxon name, assembled independently of this claim, with a licence that permits download. The squamate table must cover snakes and lizards, not a single genus. The many-legged table must state walking-leg counts rather than a presence/absence of limbs.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/assessmentType
claim-test/0.1.0
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/dataKind
biological
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/disconfirmingObservation
A squamate with a limb count other than 0, 2 or 4, or a vertebrate specimen with more than four walking legs.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/evidenceAgainst
Mammals, birds, amphibians and fishes are not in these two files. The pre-registration treats that absence as coverage, not as a failure.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/evidenceAgainst
SquamBase 'reduced' is mapped to 4 because the codebook says reduced means short limbs, not an extra pair. Digit counts are not a separate column in this file.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/evidenceAgainst
The arthropod table is a comparative specimen sample, not a census of arthropods.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/expectedObservation
Every coded squamate has 0, 2 or 4 limbs, and every arthropod specimen with more than four walking legs is non-vertebrate.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/failCriterion
Any mapped squamate limb count is outside {0, 2, 4}, or any specimen with more than four walking legs is coded as a vertebrate. If either file cannot be retrieved, or fewer than 5000 squamates map, or fewer than 30 many-legged arthropod specimens are present, and no counterexample has already been found, the verdict is inconclusive with reason data-unavailable or underpowered as appropriate. Unmapped limb strings that are more than 1% of SquamBase rows and that do not themselves state a count outside {0, 2, 4} make the verdict inconclusive with reason other, unless a mapped counterexample is already present, in which case the verdict is refutes.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/hasConfidence
0.78
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/hasEvidence
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/hasEvidence
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/hasVerdict
supports
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/hypothesis
If every animal with more than four feet is bloodless, and every blooded animal has no feet, two feet or four feet, then squamates (blooded) have only 0, 2 or 4 limbs and every arthropod specimen with more than four walking legs is outside the vertebrates.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/inferenceMethod
Map each row to a limb count with the codebook above. A universal is refuted by one counterexample. A pass requires both sample-size floors and zero counterexamples. No phylogenetic model.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/passCriterion
Both of the following. (1) In SquamBase, at least 5000 species have a limb count mapped to a number, and none of those counts is outside {0, 2, 4}. (2) In the arthropod feet dataset, at least 30 specimens have a walking-leg count strictly greater than 4, and none of those specimens is coded in a vertebrate class, phylum or order. Mammals, birds, amphibians and fishes are outside these two files and do not have to be present for a pass; their absence is a coverage caveat, not a fail.
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/ontology/preregistered
false
https://w3id.org/delphi/resource/claim/aristotle-ha01-08
https://w3id.org/delphi/ontology/hasAssessment
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
http://purl.org/dc/terms/description
limb category for each squamate species
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
http://purl.org/dc/terms/license
https://spdx.org/licenses/CC0-1.0.html
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/EvidenceItem
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
http://www.w3.org/2000/01/rdf-schema#label
Dataset: SquamBase 1.0 – a dataset of squamate species traits
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
http://www.w3.org/ns/prov#atLocation
https://datadryad.org/downloads/file_stream/2884612
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
http://www.w3.org/ns/prov#wasDerivedFrom
https://datadryad.org/dataset/doi:10.5061/dryad.76hdr7t3b
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-1
https://w3id.org/delphi/ontology/hasChecksum
sha256:e850eb807240e1012d0af3e5f2c33a84dab406d50e86a8e3dc591f51a64912af
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
http://purl.org/dc/terms/description
walking-leg count and taxonomic class or order for each specimen
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
http://purl.org/dc/terms/license
https://spdx.org/licenses/CC0-1.0.html
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/EvidenceItem
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
http://www.w3.org/2000/01/rdf-schema#label
Dataset: Data from: Which arthropods have feet and why? Addressing an argument for aquatic fossil scorpions
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
http://www.w3.org/ns/prov#atLocation
https://datadryad.org/downloads/file_stream/4221035
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
http://www.w3.org/ns/prov#wasDerivedFrom
https://datadryad.org/dataset/doi:10.5061/dryad.98sf7m0tk
https://w3id.org/delphi/resource/evidence/aristotle-ha01-08--claim-test--dataset-2
https://w3id.org/delphi/ontology/hasChecksum
sha256:0ca5307235e1ce60306fa2d3fd6535bdb011f2b08f172b6eb52fddf2edfa110c
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/provenance
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#SoftwareAgent
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
http://www.w3.org/2000/01/rdf-schema#label
delphisci claim tester (Grok 4.7; cursor/aristotle-biology-tests-4186)
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
http://www.w3.org/ns/prov#actedOnBehalfOf
https://orcid.org/0009-0007-4948-9192
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/delphi/ontology/usesModel
https://w3id.org/delphi/resource/model/grok-4-7
https://w3id.org/delphi/resource/model/grok-4-7
http://purl.org/dc/terms/identifier
Grok 4.7
https://w3id.org/delphi/resource/model/grok-4-7
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
https://w3id.org/delphi/ontology/LanguageModel
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/assertion
http://www.w3.org/ns/prov#wasAttributedTo
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/assertion
http://www.w3.org/ns/prov#wasDerivedFrom
https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/aristotle-biology/aristotle-ha01-08/result.json
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/assertion
http://www.w3.org/ns/prov#wasGeneratedBy
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/test
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/plan
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https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/README.md
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http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#Activity
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/test
http://www.w3.org/ns/prov#qualifiedAssociation
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/plan
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/test
http://www.w3.org/ns/prov#wasAssociatedWith
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/pubinfo
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://purl.org/dc/terms/created
2026-11-08T16:24:31.746Z
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://purl.org/dc/terms/creator
https://orcid.org/0009-0007-4948-9192
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://purl.org/dc/terms/license
https://creativecommons.org/licenses/by/4.0/
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://purl.org/nanopub/x/hasNanopubType
https://w3id.org/delphi/ontology/Assessment
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://purl.org/nanopub/x/introduces
https://w3id.org/delphi/resource/assessment/aristotle-ha01-08--claim-test
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
http://www.w3.org/2000/01/rdf-schema#label
Claim test of aristotle-ha01-08: supports, confidence 0.78
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
https://w3id.org/delphi/ontology/domain
https://w3id.org/delphi/resource/domain/aristotle-biology
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/sig
http://purl.org/nanopub/x/hasAlgorithm
RSA
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/sig
http://purl.org/nanopub/x/hasPublicKey
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http://purl.org/nanopub/x/hasSignatureTarget
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk
https://w3id.org/np/RAcDv3OGDnbQyJnrcqPnFiyAwrfnSgruNPQCjHVOj9wHk/sig
http://purl.org/nanopub/x/signedBy
https://orcid.org/0009-0007-4948-9192