PH
    flowchart
    AA["Associated Authors (0)"]
    C[PH]
    BC["Broader Concepts (1)"]
    NC["Narrower Concepts (0)"]
    C== skos:broader ==>BC
    NC== skos:broader ==>C
    AA== dcterms:relation ==>C
    click BC "#broader-concepts"
    click NC "#narrower-concepts"
    click AA "#associated-authors"
    NI["add incoming edge"]
    NO["add outgoing edge"]
    NI-- ? -->C
    C-- ? -->NO
    click NI "#add-incoming-edge"
    click NO "#add-outgoing-edge"
    style NI stroke-width:2px,stroke-dasharray: 5 5
    style NO stroke-width:2px,stroke-dasharray: 5 5
- Wikidata
- https://www.wikidata.org/wiki/Q1063380
- OpenAlex ID
- https://openalex.org/C122806257 (API record)
- OpenAlex Description
- algorithmic complexity class; the union of all complexity classes in the polynomial hierarchy; the set of languages expressible by second-order logic
- OpenAlex Level [?]
- 5
Broader Concepts
Narrower Concepts
Associated Authors
Add Incoming Edge
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Add Outgoing Edge
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 HelioWeb
 HelioWeb