Property talk:P7431

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Wolfram Language quantity ID
identifier for a (physical, chemical, ...) quantity in the Wolfram Language

Represents	physical quantity (Q107715)
Associated item	Wolfram Research (Q1367937)
Applicable "stated in" value	Wolfram Language (Q15241057)
Data type	External identifier
Domain	individual quantity (Q71550118)
Allowed values	[a-zA-Z]+
Example	length (Q36253) → Length wavenumber (Q192510) → Wavenumber heat capacity (Q179388) → HeatCapacity specific heat capacity (Q487756) → SpecificHeatCapacity
Source	https://reference.wolfram.com/language/ref/QuantityVariable
See also	Wolfram Language entity code (P4839), Wolfram Language unit code (P7007), Wolfram Language entity type (P7497)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P7431 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,160 Main statement 1,156 99.7% of uses Qualifier 4 0.3% of uses
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Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Single value, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Unique value, SPARQL (every item), SPARQL (by value)

Format “[a-zA-Z][a-zA-Z0-9]*”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Format, SPARQL

Type “individual quantity (Q71550118)”: item must contain property “subclass of (P279)” with classes “individual quantity (Q71550118)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Type Q71550118, SPARQL

Conflicts with “Wolfram Language unit code (P7007)”: this property must not be used with the listed properties and values. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Conflicts with P7007, search, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Scope, SPARQL

Item “ISQ dimension (P4020)”: Items with this property should also have “ISQ dimension (P4020)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P7431#Item P4020, SPARQL