نقیض گزاره $\exists y\in R;y\lt 0\wedge {{y}^{2}}\le 1$ کدام است؟
1 )
$\forall y\in R;y\ge 0\wedge {{y}^{2}}\gt 1$
2 )
$\exists y\in R;y\ge 0\wedge {{y}^{2}}\gt 1$
$\forall y\in R;y\ge 0\vee {{y}^{2}}\gt 1$
4 )
$\exists y\in R;y\ge 0\vee {{y}^{2}}\gt 1$