https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/Head
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://www.nanopub.org/nschema#hasAssertion
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/assertion
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://www.nanopub.org/nschema#hasProvenance
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/provenance
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://www.nanopub.org/nschema#hasPublicationInfo
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/pubinfo
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.nanopub.org/nschema#Nanopublication
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/assertion
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
http://purl.org/dc/terms/description
Downloaded the FishBase v25.04 tables and joined morphdat to species, families, and orders. A blank pelvic position is not an absence code; the words absent, suppressed, and none are. A species has four paired fins only when the pectoral text is present without an absence row and the pelvic text is present without an absence row. Broad-and-flat species (body-shape text containing 'flat', or a batoid order) are removed from the proportion and kept in the extra-pair search. Dorsal-fin counts are descriptive and are not in the verdict.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--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-pa04-31--claim-test
http://www.w3.org/2000/01/rdf-schema#comment
Measured: 0.9589 proportion of scored non-flat fishes with both pectoral and pelvic pairs and no absence row (n = 7741). Interpretation: The quote's 'two on the upper and two on the under side' and the claim's scope both map the four fins to the pectoral and pelvic pairs, not to dorsal, anal, and caudal fins. Broad and flat follows the named exception of rays and skates, plus any species whose body-shape text says flat. Jawless fishes are excluded because this section of the claim is about finned fishes, not hagfish or lampreys. A fish with both pairs is counted as four fins because each field records one pair; the table has no column for a second pectoral pair, so 'more than four' is tested in the free-text AddChars field rather than by a count the schema cannot store.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
http://www.w3.org/2000/01/rdf-schema#label
Claim test of aristotle-pa04-31: supports, confidence 0.55
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--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-pa04-31/result.json
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--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-pa04-31--claim-test
https://w3id.org/delphi/ontology/admissibleDatasets
A public species-level fin-attribute table compiled independently of Aristotle, with pectoral and pelvic fields that can record absence, plus a body-shape or order field that marks broad flat fishes. Median-fin counts may be reported and do not decide the verdict.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/assessmentType
claim-test/0.1.0
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/dataKind
biological
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/disconfirmingObservation
Half or more of scored non-flat fishes lack a pectoral or a pelvic pair, or at least five species are described with an extra paired fin.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/evidenceAgainst
A web-search snippet of the FishBase morphology page for Mola mola showed pelvic attributes 'suppressed/absent' and position 'absent'. That page supplied the absence wording. It was not counted, and no fin-attribute distribution was computed before this registration.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/evidenceAgainst
After the deviations, 7423 of 7741 scored non-flat species have both pairs (0.9589). 271 are coded with the pelvic pair absent and 47 with the pectoral pair absent, so the universal wording is not literally true of every scored fish. The verdict uses the pre-registered 0.95 tolerance. Separately, nearly every species with a dorsal-fin count has at least one dorsal fin, which would put the total above four if median fins were counted. That reading is not the verdict.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/evidenceAgainst
Parquet column names for FishBase v25.04 were read earlier for aristotle-ha05-03. PectoralAttributes, PelvicsAttributes, VPosition, BodyShapeI, BodyShapeII, and AddChars values have not been tabulated for this claim.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/evidenceAgainst
The paired-fin schema records one pair of each. A negative text search can show that no species was described with an extra pair. It cannot show a fin the compilers had no place to put.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/expectedObservation
Among scored fishes that are not broad and flat, at least 95 percent have both a pectoral pair and a pelvic pair, and no included species is described as having a further pair.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/failCriterion
Pre-registered. Refutes if the proportion of scored non-flat species with four paired fins is below 0.50, or if at least five species in the included classes have an AddChars match for an extra paired fin. Mixed if the proportion is at least 0.50 and below 0.95 while fewer than five species have an extra pair, or if the proportion is at least 0.95 but at least one and fewer than five species have an extra pair. Inconclusive with reason underpowered if fewer than 200 non-flat species are scored for both paired fins. Inconclusive with reason data-unavailable if the paired-fin columns are missing or entirely blank.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/hasConfidence
0.55
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/hasEvidence
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/hasVerdict
supports
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/hypothesis
If the claim holds, fishes that are not broad and flat have one pair of pectoral fins and one pair of pelvic fins, and no fish has an extra pair beyond those four fins.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/inferenceMethod
Species-level proportion with both pairs present and no conflicting absence row, denominator the scored non-flat species in the classes named above, thresholds 0.95 and 0.50, plus a literal search of AddChars for an extra pair. Dorsal, anal, and caudal fin counts are descriptive only, because the claim's scope maps the four fins to the paired pectoral and pelvic fins.
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/passCriterion
Pre-registered (supports). From FishBase v25.04 morphdat joined to species, families, and orders. Include classes Actinopterygii, Actinopteri, Teleostei, Chondrostei, Holostei, Cladistii, Elasmobranchii, Holocephali, Sarcopterygii, Coelacanthi, and Dipneusti. Exclude jawless classes Agnatha, Myxini, Petromyzonti, and Cephalaspidomorphi. A species is broad-and-flat if BodyShapeI or BodyShapeII contains 'flat', or if its order matches the batoid rule used for aristotle-ha05-03 (order name matching rajiformes, myliobatiformes, torpediniformes, rhinopristiformes, rhinobatiformes, pristiformes, or platyrhiniformes, or order common name matching rays, skates, guitarfish, sawfish, or torpedo). Absence codes are the words absent, suppressed, or none. A species is scored when at least one row has a non-empty PectoralAttributes and at least one row has a non-empty PelvicsAttributes or VPosition. It has four paired fins only if some row records a non-absent pectoral and no row records an absent pectoral, and some row records a non-absent pelvic attribute with a non-absent VPosition and no row records an absent pelvic attribute or an absent VPosition. Supports only if at least 200 non-flat species are scored, the proportion with four paired fins is at least 0.95, and a search of AddChars finds no species described with an extra paired fin (patterns: three pairs, third pair, two pairs of pectoral, additional pair of pectoral, extra pectoral fin, three pectoral).
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/ontology/preregistered
false
https://w3id.org/delphi/resource/claim/aristotle-pa04-31
https://w3id.org/delphi/ontology/hasAssessment
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
http://purl.org/dc/terms/description
pectoral and pelvic fin attributes, body shape, and the order used to mark rays and skates
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
http://purl.org/dc/terms/license
CC BY-NC 4.0
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--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-pa04-31--claim-test--dataset-1
http://www.w3.org/2000/01/rdf-schema#label
Dataset: FishBase v25.04 morphdat, species, families, and orders
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
http://www.w3.org/ns/prov#atLocation
https://huggingface.co/datasets/cboettig/fishbase/resolve/main/data/fb/v25.04/parquet/families.parquet
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
http://www.w3.org/ns/prov#atLocation
https://huggingface.co/datasets/cboettig/fishbase/resolve/main/data/fb/v25.04/parquet/morphdat.parquet
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
http://www.w3.org/ns/prov#atLocation
https://huggingface.co/datasets/cboettig/fishbase/resolve/main/data/fb/v25.04/parquet/orders.parquet
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
http://www.w3.org/ns/prov#atLocation
https://huggingface.co/datasets/cboettig/fishbase/resolve/main/data/fb/v25.04/parquet/species.parquet
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
http://www.w3.org/ns/prov#wasDerivedFrom
https://huggingface.co/datasets/cboettig/fishbase
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
https://w3id.org/delphi/ontology/hasChecksum
sha256:02bfae694deed266250e58ecebf4b10af595178944c431612e865cb37dc563e4
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
https://w3id.org/delphi/ontology/hasChecksum
sha256:3f09bbb09c1c10219277f35b4f8c42aebedd5f1b8e00ebdfdeb0e16574b0e090
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
https://w3id.org/delphi/ontology/hasChecksum
sha256:7078e696cec600ff6243c0088c0dfcf3a829ec02caeea5b6ec83a3178321d5ef
https://w3id.org/delphi/resource/evidence/aristotle-pa04-31--claim-test--dataset-1
https://w3id.org/delphi/ontology/hasChecksum
sha256:a0f33b60ffbc1950ae8b57f652fd0b327f7d00713602c0f4e847ca1d8c8f69a0
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/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-claim-tests-ec43)
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/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/assertion
http://www.w3.org/ns/prov#wasAttributedTo
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/assertion
http://www.w3.org/ns/prov#wasDerivedFrom
https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/aristotle-biology/aristotle-pa04-31/result.json
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/assertion
http://www.w3.org/ns/prov#wasGeneratedBy
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/test
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/plan
http://www.w3.org/ns/prov#hadPlan
https://github.com/fractastical/delphisci/blob/bf2af6ee0a84e23ffa6414ad7a0a50a8c276506e/test-data/claim-tests/README.md
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/test
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#Activity
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/test
http://www.w3.org/ns/prov#qualifiedAssociation
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/plan
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/test
http://www.w3.org/ns/prov#wasAssociatedWith
https://w3id.org/delphi/resource/agent/delphisci-claim-tester-grok-4-7
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/pubinfo
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://purl.org/dc/terms/created
2026-11-08T16:24:31.802Z
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://purl.org/dc/terms/creator
https://orcid.org/0009-0007-4948-9192
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://purl.org/dc/terms/license
https://creativecommons.org/licenses/by/4.0/
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://purl.org/nanopub/x/hasNanopubType
https://w3id.org/delphi/ontology/Assessment
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://purl.org/nanopub/x/introduces
https://w3id.org/delphi/resource/assessment/aristotle-pa04-31--claim-test
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
http://www.w3.org/2000/01/rdf-schema#label
Claim test of aristotle-pa04-31: supports, confidence 0.55
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
https://w3id.org/delphi/ontology/domain
https://w3id.org/delphi/resource/domain/aristotle-biology
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/sig
http://purl.org/nanopub/x/hasAlgorithm
RSA
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/sig
http://purl.org/nanopub/x/hasPublicKey
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/sig
http://purl.org/nanopub/x/hasSignature
eyEnXfOrMVrsXREZmPZ2tc3hKrdKJnE0P8pVJ598U92ux+oS7Qq6ThVBrsYOkqbzswiWFOsqe7BZVB4Zn9ltbSa2abIcevMrwXkyh5VceTVSJTr3jpC70M57zQ+0Sbrh2VXEmI/wsf3pfP/fu8WBYCTZ64pCjnc6XOQeGgYrUFUcKeXFEfYz92lKwxqtwZC/oQRFgVNWBslFRg/v11vrHjKsrdqZAgQotXPfSGsBMxQq4073D5pEVxSCReEIqjoUMBo3w9GSJZx9bgcs5zcDVPGCUTHdPPIxoCcacs5J5GaE9tCIjG/67UEfPXsUJ2DSELI4xfHYyV1mpqUi6/CBMw==
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/sig
http://purl.org/nanopub/x/hasSignatureTarget
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ
https://w3id.org/np/RAN0KbIXplgpX14hhhBVDNyXTSjHAj5csq5yhOJC6mjTQ/sig
http://purl.org/nanopub/x/signedBy
https://orcid.org/0009-0007-4948-9192