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Знайти формули, які записано у випередженій нормальній формі.
\exists z \forall y \exists x (\overline{Q}(x,z,y)\to R(x)) .
\forall x (\forall y \exists z P(z,y))\vee R(x) .
\forall x \forall y \exists z (P(z,y)\vee R(x)) .
\exists z Q(z,y) \sim \forall y\overline{R}(y) .
\forall z \forall y (P(z,y)\wedge Q(y)) .
\forall z \forall y P(z,y)\wedge\overline{ \forall y Q(y)} .
\exists z \forall y (Q(z,y) \sim \overline{R}(y)) .
\forall y \exists x (\exists z Q(x,z,y)\to R(x)) .
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