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  "body": "\n## Summary\n\nIn logic, **false** (Its noun form is falsity) or **untrue** is the state of possessing negative truth value and is a nullary logical connective. In a truth-functional system of propositional logic, it is one of two postulated truth values, along with its [[negation|029JBBF693]], truth. Usual notations of the false are 0 (especially in Boolean logic and computer science), O (in prefix notation, O*pq*), and the up tack symbol $\\bot$.\n",
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