"diamond theorem" meaning in All languages combined

{
  "forms": [
    {
      "form": "the diamond theorem",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the diamond theorem",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A theorem discovered by Steven H. Cullinane in 1975 that deals with the finite geometry of graphic patterns."
      ],
      "id": "en-diamond_theorem-en-name-evrmCl4x"
    }
  ],
  "word": "diamond theorem"
}

{
  "forms": [
    {
      "form": "the diamond theorem",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "def": "1"
      },
      "expansion": "the diamond theorem",
      "name": "en-prop"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English uncountable nouns"
      ],
      "glosses": [
        "A theorem discovered by Steven H. Cullinane in 1975 that deals with the finite geometry of graphic patterns."
      ]
    }
  ],
  "word": "diamond theorem"
}