Talk:Q3133

Autodescription — green (Q3133)

description: additive primary color, visible between blue and yellow

Useful links:

Pretty display of data  (with Wikidata:Reasonator)
Pretty display of data (with Wikidata:Sqid)
View it! – Images depicting the item on Commons
Scholia
Report on constraint conformation of “green” claims and statements. Constraints report for items data
Number of statements about green by property (query)
All claims about green (query)
List of items with same label (query)
List of lexemes with sense green (query)

Classification of the class green (Q3133)  

For help about classification, see Wikidata:Classification.

Parent classes (classes of items which contain this one item)

green (Q3133)
- light (Q9128)
  - electromagnetic wave (Q11386)
    - wave (Q37172)
      - oscillation (Q170475)
        change (Q1150070) ^(@)→
    - electromagnetic radiation (Q12969754) ^(%)→
  - optical radiation (Q7098889)
    - ^→(%) electromagnetic radiation (Q12969754)
      - radiation (Q18335)
        heat transfer (Q179635)
        energy transfer (Q15211908)
        interaction (Q52948) ^(+)→
        thermodynamic process (Q213016)
        physical process (Q17320256) ^(§)→
        ^→(§) physical process (Q17320256)
        physicochemical process (Q111752858)
        process (Q3249551) ^(⁋)→
        physical phenomenon (Q1293220) ^(¶)→
        transfer (Q125506646)
        ^→(@) change (Q1150070)
        occurrent (Q67518978) ^(#)→
        ^→(+) interaction (Q52948)
        effect (Q111931734)
        action (Q4026292)
        occurrence (Q1190554) ^(●)→
        relation (Q930933)
        property (Q937228) ^(¤)→
        energy transfer process (Q116118033)
        environmental system process (Q116118210)
        ^→(⁋) process (Q3249551)
        sequence (Q133250) ^…
        ^→(#) occurrent (Q67518978)
        spatio-temporal entity (Q58415929)
        object (Q488383)
        entity (Q35120) ⊸
- color (Q1075)

Subclasses (classes which contain special kinds of items of this class)

⟨green⟩ on wikidata tree visualisation (external tool)(depth=1)

Generic queries for classes

See also

This documentation is generated using {{Item documentation}}.

Subclass of what

@ArthurPSmith: I would advocate using subclass of (P279) color (Q1075) rather than instance of (P31). Now (and it's understandable)

⟨ emerald (Q2465494)  

 ⟩ subclass of (P279) ⟨ green (Q3133)  

 ⟩

. If we have

⟨ green (Q3133)  

 ⟩ subclass of (P279) ⟨ color (Q1075)  

 ⟩

then by transition we would have

⟨ emerald (Q2465494)  

 ⟩ subclass of (P279) ⟨ color (Q1075)  

 ⟩

which is ok. But if we have

⟨ green (Q3133)  

 ⟩ instance of (P31) ⟨ color (Q1075)  

 ⟩

then transitivity doesn't work. Additionally how can we call green an instance? Where is it situated and when was it created? Or you want to claim that color (Q1075) is a metaclass?? --Infovarius (talk) 14:56, 27 May 2018 (UTC)[reply]

Well, what is an "instance" of green (Q3133) in the first place? Is the instance the spectral properties of an object, or the act of visual perception of something with that appearance? So it's not clear that any of these are really classes in the sense that they are collections of physical entities; however to the degree they have any such meaning, the subclass relation makes sense as a way of grouping narrower filters of experiences or object surfaces into broader ones. But that meaning does not carry over to color (Q1075) itself. So yes, I'm saying that color (Q1075) is clearly a metaclass. ArthurPSmith (talk) 00:38, 28 May 2018 (UTC)[reply]