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Bijection, injection and surjection

Injection: one to one, surjection: onto, bijection: both one to one and onto.
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Bijection, injection and surjection

Summary

Bijection, injection and surjection ranks in the top 2% of general entities by monthly Wikipedia readership (82 views/month).[1]

Key Facts

  • Bijection, injection and surjection's Freebase ID is recorded as /m/025r_sq[2].
  • Bijection, injection and surjection's Microsoft Academic ID is recorded as 48659774[3].
  • Bijection, injection and surjection's OpenAlex ID is recorded as C48659774[4].

Why It Matters

Bijection, injection and surjection ranks in the top 2% of general entities by monthly Wikipedia readership (82 views/month).[1]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Bijection, injection and surjection. Retrieved April 10, 2026, from https://4ort.xyz/entity/bijection-injection-and-surjection
MLA “Bijection, injection and surjection.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/bijection-injection-and-surjection.
BibTeX @misc{4ortxyz_bijection-injection-and-surjection_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Bijection, injection and surjection}}, year = {2026}, url = {https://4ort.xyz/entity/bijection-injection-and-surjection}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Bijection, injection and surjection — https://4ort.xyz/entity/bijection-injection-and-surjection (retrieved 2026-04-10)

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