Vacuous truth
In mathematics and logic, a vacuous truth is a conditional or universal statement that is only true because the antecedent cannot be satisfied. For example, the statement "all cell phones in the room are turned off" will be true when there are no cell phones in the room. In this case, the statement "all cell phones in the room are turned on" would also be vacuously true, as would the conjunction of the two: "all cell phones in the room are turned on and turned off". For that reason, it is sometimes said that a statement is vacuously true only because it does not really say anything.
Albertson conjectureAperiodic graphArgument from fallacyAsymmetric relationBell numberBinary relationClause (logic)Convexity in economicsDedekind domainDefinite assignment analysisDefinite descriptionDegeneracy (mathematics)Deontic logicDerivative testDeviation of a posetDrinker paradoxEmpty productEmpty semigroupEmpty setEpsilon-inductionEqualiser (mathematics)Equivalence relationEssays in Positive EconomicsExistential fallacyExistential quantificationEye candyGraded posetHenstock–Kurzweil integralHereditary propertyHereditary setHessenberg matrixHolds vacuouslyHyperconnected spaceIndex of logic articlesIndex of philosophy articles (R–Z)Indicative conditionalIntersection (set theory)Kripke semanticsLattice (order)Liar paradox in early Islamic tradition
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Vacuous truth
In mathematics and logic, a vacuous truth is a conditional or universal statement that is only true because the antecedent cannot be satisfied. For example, the statement "all cell phones in the room are turned off" will be true when there are no cell phones in the room. In this case, the statement "all cell phones in the room are turned on" would also be vacuously true, as would the conjunction of the two: "all cell phones in the room are turned on and turned off". For that reason, it is sometimes said that a statement is vacuously true only because it does not really say anything.
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A verdade por vacuidade é uma ...... ) de um evento que não existe.
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En matemática y lógica, una ve ...... verdura en el plato del niño.
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In mathematics and logic, a va ...... nd I'm the Queen of England").
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1,020,370,373
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A verdade por vacuidade é uma ...... a estão ligados e desligados”.
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En matemática y lógica, una ve ...... están encendidos y apagados».
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In mathematics and logic, a va ...... does not really say anything.
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Vacuous truth
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Verdad vacua
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Verdade por vacuidade
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