{
  "row_mechanism": {
    "parameter": "u100",
    "object": "namedMT/LXX begettingdifferences",
    "premises": [
      "twelvecentury supports",
      "Nahorhalfsupport",
      "sourceorder",
      "Cainanmatchedscope"
    ]
  },
  "variant_mechanism": {
    "parameters": [
      "T60",
      "C130",
      "S215"
    ],
    "object": "finite permitted placementchoices withnestedsource supports",
    "source_roles": [
      {
        "symbol": "u",
        "value": 100,
        "role": "Shared observed begetting difference on twelve named MT/LXX rows; Nahor carries half.",
        "source": "File18 \u00a7\u00a72.1.3\u20132.2,4.1\u20134.2; lines1223\u20131252,1692\u20131748.",
        "status": "Difference of supplied selected rows; equality across locations is an observed/fitted pattern, not twelve independent historical trials."
      },
      {
        "symbol": "T",
        "value": 60,
        "role": "Terah variant,130\u221270.",
        "source": "File04 \u00a72.4,lines427\u2013446; File18 \u00a71.3.1 Terah table,lines645\u2013650.",
        "status": "Repository textual harmonization205\u221275=130;130\u221270=60, explicitly structural inference."
      },
      {
        "symbol": "C",
        "value": 130,
        "role": "Second Cainan Regular insertion.",
        "source": "File18 \u00a71.6.1\u2013\u00a71.6.2,lines1123\u20131147; nativeLXX\u00a74.2.",
        "status": "Selected begetting interval, distinct from his lifespan460 and from Terah\u2019s numerically equal130. LXX already contains it."
      },
      {
        "symbol": "S",
        "value": 215,
        "role": "Sojourn allocation difference with Exodus held.",
        "source": "File00 \u00a73.3.1,lines790\u2013804; File18 \u00a71.1.",
        "status": "Primary Egypt215/430 comparison; not the subordinate whole-system Exodus215."
      }
    ],
    "premises": [
      "Kohath/Amram have no direct regular-date anchors in this variant scheme.",
      "Cainan\u2019s inserted coordinate is constructed relative toShelah; it receives no extra self-shift.",
      "The same variant state cancels from a paired MT/LXX comparison wherever masks agree. Unmatched labels addT\u0394t+C\u0394c+S\u0394s at shared upstream heads.",
      "The ordinary common-row LXXOFF comparison is a declared theoretical leveling; nativeLXX retains its row and gives1380/780.",
      "T/C/S masks are prefix incidence; the centenary row-change mask has internal locations. One does not determine the other."
    ]
  },
  "connection_question": "Under whatconditions do12.5u and6.5u equal5(C+2T) and5C?",
  "scope": "No claim thatone mechanismsourcegenerates theother."
}