{
  "aliases": [
    "left-tack",
    "right-tack",
    "turnstile-mathematical-logic",
    "turnstile-symbol",
    "vdash"
  ],
  "backlinks": null,
  "body": "\n## Summary\n\nIn mathematical logic and computer science the symbol ⊢ ($\\vdash$) has taken the name **turnstile** because of its resemblance to a typical turnstile. It is also referred to as **tee** and is often read as \"yields\", \"proves\", \"satisfies\" or \"entails\".\n",
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    "kind": "concept",
    "name": "Turnstile (symbol)",
    "same_as": {
      "wikidata": "Q7856108",
      "wikipedia": "Turnstile (symbol)"
    },
    "sources": [
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        "locator": "Turnstile (symbol)",
        "mention": "wikipedia://en/7954712",
        "note": "adopted",
        "sections": [
          "Summary"
        ],
        "wikipedia": "en:7954712@r1352986291"
      }
    ],
    "tag": "2QQMJMS8M5"
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  "kind": "concept",
  "link": "https://math2.tamnd.com/node/2QQMJMS8M5/",
  "links": null,
  "markdown": "https://math2.tamnd.com/node/2QQMJMS8M5.md",
  "msc": null,
  "name": "Turnstile (symbol)",
  "prov": null,
  "role": "",
  "source": "https://github.com/tamnd/math2/blob/main/nodes/2QQ/2QQMJMS8M5.md",
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  "tag": "2QQMJMS8M5",
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  "url": "https://math2.tamnd.com/wiki/turnstile-symbol/",
  "writing": {
    "tag": "2QQMJMS8M5",
    "kind": "concept",
    "level": "W1",
    "next": [
      {
        "what": "edge defines in",
        "note": "at least one definition",
        "have": 0,
        "want": 1
      },
      {
        "what": "edge instance_of in",
        "note": "at least two examples",
        "have": 0,
        "want": 2
      },
      {
        "what": "edge not_instance_of in",
        "note": "at least one non-example",
        "have": 0,
        "want": 1
      },
      {
        "what": "edge specializes both",
        "note": "the more general notions and the special cases",
        "have": 0,
        "want": 1
      }
    ]
  }
}