{
  "id": "four.cardinal",
  "term": "four",
  "sense": "cardinal",
  "pos": "noun",
  "status": "review",
  "level": 12,
  "arena": "numeric",
  "domain": "mathematics",
  "style": null,
  "definition": "the result of adding single to three",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "three.cardinal",
      "single.quantity",
      "add.operation",
      "results.outcome"
    ],
    "interaction": "three and single are combined through addition, producing a result",
    "novel_properties": [
      "numerical value greater than three",
      "composite quantity from addition",
      "outcome distinct from its addends"
    ]
  },
  "examples": [
    {
      "text": "Apollo 13 returned safely using the lunar module as a lifeboat after an oxygen tank exploded en route to the Moon.",
      "domain": "engineering"
    },
    {
      "text": "The 2011 Tohoku earthquake shifted Japan's coastline by up to four meters in places, recorded by GPS stations.",
      "domain": "geophysics"
    },
    {
      "text": "The Four Seasons Orchestra performed Vivaldi's 'Four Seasons' at the 2020 Vienna Musikverein season opener.",
      "domain": "culture"
    }
  ],
  "relations": [
    {
      "id": "number.quantity",
      "note": "is-a",
      "type": "is-a"
    }
  ],
  "used_by": [
    "fourth.ordinal",
    "friday.temporal",
    "third.ordinal"
  ],
  "forms": [
    "four",
    "fours"
  ],
  "closed": true,
  "provenance": {
    "author": "openrouter:openai/gpt-oss-120b",
    "date": "2026-07-29",
    "confidence": 0.6,
    "reconciled": {
      "by": "openrouter:qwen/qwen3-235b-a22b-2507",
      "date": "2026-07-31",
      "changed": "components",
      "note": "Retained original definition as it correctly describes the concept. Added missing constitutive components 'add.operation' and 'results.outcome' to align record with definition."
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-four.cardinal"
}