10.
以下说法正确的有\((\) \()\)
\((1)y=x+ \dfrac {1}{x}(x∈R)\)最小值为\(2\);
\((2)a^{2}+b^{2}\geqslant 2ab\)对\(a\),\(b∈R\)恒成立;
\((3)a > b > 0\)且\(c > d > 0\),则必有\(ac > bd\);
\((4)\)命题“\(∃x∈R\),使得\(x^{2}+x+1\geqslant 0\)”的否定是“\(∀x∈R\),使得\(x^{2}+x+1\geqslant 0\)”;
\((5)\)实数\(x > y\)是\( \dfrac {1}{x} < \dfrac {1}{y}\)成立的充要条件;
\((6)\)设\(p\),\(q\)为简单命题,若“\(p∨q\)”为假命题,则“\(¬p∨¬q\)”也为假命题.