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  "citation": "Taylor, B. P. (2026). Conant-Ashby Theorem. The Necessary Tangle, release 0.35. https://transduction.systems/entries/law_or_principle_conant_ashby_theorem/",
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      "isbn": "",
      "publisher": "International Journal of Systems Science 1(2), 89–97",
      "licence": "publisher_terms",
      "archived_url": "",
      "content_hash": "",
      "review_status": "passage_checked_research_pass",
      "last_checked": "2026-10-29",
      "public_link_status": "public_link",
      "reading_url": "https://pespmc1.vub.ac.be/books/Conant_Ashby.pdf",
      "connection_pass": "depth_20261029",
      "source_locator": "Theorem, proof, and subsequent comments, electronic PDF pp. 8–9; section 5, Discussion",
      "access_note": "Electronic transcription contains formatting errors in some equations. Locators here identify its PDF pages, not invented original journal page correspondence."
    },
    {
      "id": "src_salah_grammar_part3_2022",
      "title": "Cybersecurity Lessons from The Grammar of Systems, part 3",
      "source_type": "public_secondary_summary",
      "quality_tier": "C",
      "access": "public",
      "url": "https://www.linkedin.com/pulse/cybersecurity-lessons-from-grammar-systems-order-chaos-osama-salah-2f",
      "date": "2022-06-01",
      "notes": "Public secondary summary of Grammar of Systems items 23–33. Used as an accessible orientation aid; the book remains the controlling source.",
      "creators": [
        "Osama Salah"
      ],
      "publisher": "LinkedIn",
      "licence": "publisher_terms",
      "review_status": "checked",
      "last_checked": "2026-08-09",
      "public_link_status": "public_link"
    },
    {
      "id": "src_salah_grammar_part2_2022",
      "title": "Cybersecurity Lessons from The Grammar of Systems, part 2",
      "source_type": "public_secondary_summary",
      "quality_tier": "C",
      "access": "public",
      "url": "https://www.linkedin.com/pulse/cybersecurity-lessons-from-grammar-systems-order-chaos-osama-salah-1f",
      "date": "2022-05-23",
      "notes": "Public secondary summary of Grammar of Systems items 12–22. Used as an accessible orientation aid; the book remains the controlling source.",
      "creators": [
        "Osama Salah"
      ],
      "publisher": "LinkedIn",
      "licence": "publisher_terms",
      "review_status": "checked",
      "last_checked": "2026-08-09",
      "public_link_status": "public_link"
    },
    {
      "id": "src_ashby_intro_cybernetics_1956",
      "title": "An Introduction to Cybernetics",
      "source_type": "primary_text",
      "quality_tier": "A",
      "access": "public",
      "url": "https://ashby.info/Ashby-Introduction-to-Cybernetics.pdf",
      "date": "1956",
      "notes": "Primary text opened and inspected. Title page identifies the 1957 second impression of the 1956 book. Use section numbers as the stable locator: the electronic PDF places two printed pages on each PDF page. Rights statement permits educational and research distribution with its notice; this packet links and paraphrases.",
      "creators": [
        "W. Ross Ashby"
      ],
      "doi": "",
      "isbn": "",
      "publisher": "Chapman & Hall",
      "licence": "archive_access_check_reuse",
      "archived_url": "https://www.ashby.info/",
      "content_hash": "",
      "review_status": "passage_checked_research_pass",
      "last_checked": "2026-10-29",
      "public_link_status": "public_link",
      "connection_pass": "depth_20261029",
      "source_locator": "1957 second impression; sections 11/5–11/11, printed pp. 205–209; PDF pp. 109–111",
      "access_note": "Use section numbers as the stable locator: the electronic PDF places two printed pages on each PDF page. Rights statement permits educational and research distribution with its notice; this packet links and paraphrases."
    },
    {
      "id": "src_lib26_3d2e2710c49aaf3d",
      "title": "Systems leadership, change, theory and practice",
      "source_type": "public_catalogue_record",
      "quality_tier": "C",
      "access": "public",
      "url": "https://antlerboy.com/library/files/talks/systems-leadership-change-theory-and-practice.pdf",
      "date": "2026-09-19",
      "notes": "Public Antlerboy manifest. PDF text indexed; located concept terms, not a full scholarly review. Identity and located teaching relationships are separated from automatic title matches and exact text mentions. A term appearing in a source is not proof of its definition, endorsement, influence, or logical dependence.",
      "creators": [
        "Benjamin P Taylor"
      ],
      "doi": "",
      "isbn": "",
      "publisher": "Benjamin P Taylor public work library",
      "licence": "source terms unless otherwise stated",
      "archived_url": "",
      "content_hash": "",
      "review_status": "located_public_record",
      "last_checked": "2026-09-19",
      "public_link_status": "public_link",
      "connection_pass": "library_20260919",
      "year": "2023"
    },
    {
      "id": "src_taylor_vsm_lecture_2025",
      "title": "Benjamin Taylor VSM lecture",
      "source_type": "public_teaching_material",
      "quality_tier": "C",
      "access": "public",
      "url": "https://antlerboy.com/library/files/talks/viable-system-model-lecture.pdf",
      "date": "2025-05-10",
      "notes": "Public teaching presentation. Public PDF linked on 2026-09-19; the earlier unpublished access description is superseded.",
      "creators": [
        "Benjamin P Taylor"
      ],
      "doi": "",
      "isbn": "",
      "publisher": "Benjamin P Taylor public work library",
      "licence": "not_publicly_licensed",
      "archived_url": "",
      "content_hash": "",
      "review_status": "public_file_identity_checked",
      "last_checked": "2026-09-19",
      "public_link_status": "public_link"
    },
    {
      "id": "src_u31_ashby",
      "title": "Ashby: selection, regulation, and variety: researcher module",
      "source_type": "public_source",
      "quality_tier": "B",
      "access": "public",
      "url": "https://rational-understanding.com/wp-content/uploads/2026/10/ashby-researcher-module.pdf",
      "date": "2026",
      "notes": "John A Challoner’s version 1 reconstruction, 30 September 2026. General and specialised definitions/propositions are labelled separately; original-author wording is not implied.",
      "creators": [
        "John A Challoner"
      ],
      "doi": "",
      "isbn": "",
      "publisher": "Rational Understanding",
      "licence": "source terms unless otherwise stated",
      "archived_url": "",
      "content_hash": "82f4be02d8ef575245c734d826a9a65993f6eba96d42c4ec67204b6f6931776e",
      "review_status": "source_scoped_research_pass",
      "last_checked": "2026-10-08",
      "public_link_status": "public_link",
      "connection_pass": "update_20261008",
      "source_locator": "Complete PDF, 6 pages; specific claims carry page and proposition references",
      "source_role": "secondary reconstruction",
      "pages_read": 6
    }
  ],
  "evidence_locators": [
    {
      "id": "ev35_law_or_principle_conant_ashby_theorem_1",
      "source_id": "src_conant_ashby_good_regulator_1970",
      "locator": "Theorem and proof, PDF pp. 8–9; Discussion",
      "review_status": "research_pass_needs_editor"
    },
    {
      "id": "ev35_edge_e16_grammar_crosswalk_162_1",
      "source_id": "src_conant_ashby_good_regulator_1970",
      "locator": "Models discussion and theorem, PDF pp. 5–8",
      "review_status": "research_pass_needs_editor"
    },
    {
      "id": "ev35_edge_e16_grammar_crosswalk_163_1",
      "source_id": "src_conant_ashby_good_regulator_1970",
      "locator": "Theorem and proof, PDF pp. 8–9",
      "review_status": "research_pass_needs_editor"
    },
    {
      "id": "ev_conant_ashby_theorem",
      "source_id": "src_conant_ashby_good_regulator_1970",
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      "review_status": "research_pass_needs_editor"
    },
    {
      "id": "ev_ashby_requisite_variety",
      "source_id": "src_ashby_intro_cybernetics_1956",
      "locator": "chapter 11, especially sections 11/7–11/13",
      "review_status": "research_pass_needs_editor"
    },
    {
      "id": "ev_e31_module_ashby_4",
      "source_id": "src_u31_ashby",
      "locator": "p. 5, PS6",
      "review_status": "research_pass_needs_editor"
    }
  ],
  "reuse_note": "Preserve source attribution, scope, and review status. Source documents and evidence excerpts are excluded."
}