principle of identity

physics principle that quantum particles or states having identical characteristics are indiscernible (indistinguishable)
Thing physical_law Q4378893
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principle of identity

Summary

principle of identity is a physical law[1]. It is known by 3 alternative names across languages and contexts.[2]

Key Facts

  • principle of identity's instance of is recorded as physical law[3].
  • principle of identity's subclass of is recorded as symmetry[4].
  • principle of identity's subclass of is recorded as indiscernibility of identicals[5].
  • principle of identity's described by source is recorded as Armenian Soviet Encyclopedia, vol. 8[6].
  • principle of identity's Encyclopædia Britannica Online ID is recorded as topic/principle-of-identity[7].
  • principle of identity's Google Knowledge Graph ID is recorded as /g/1hc0gp9j7[8].
  • principle of identity's World of Physics ID is recorded as IndistinguishableParticles[9].
  • principle of identity's characteristic of is recorded as identical particle[10].

Why It Matters

principle of identity is known by 3 alternative names across languages and contexts.[2]

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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). principle of identity. Retrieved May 3, 2026, from https://4ort.xyz/entity/principle-of-identity
MLA “principle of identity.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/principle-of-identity.
BibTeX @misc{4ortxyz_principle-of-identity_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{principle of identity}}, year = {2026}, url = {https://4ort.xyz/entity/principle-of-identity}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): principle of identity — https://4ort.xyz/entity/principle-of-identity (retrieved 2026-05-03)

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