2.
考察以下列命题:
\(①\)命题“\(\lg x=0\),则\(x=1\)”的否命题为“若\(\lg x\neq 0\),则\(x\neq 1\)”
\(②\)若“\(p∧q\)”为假命题,则\(p\)、\(q\)均为假命题
\(③\)命题\(p\):\(∃x∈R\),使得\(\sin x > 1\);则\(¬p\):\(∀x∈R\),均有\(\sin x\leqslant 1\)
\(④\)“\(x > 2\)”是“\( \dfrac {1}{x} < \dfrac {1}{2}\)”的充分不必要条件
则真命题的个数为\((\) \()\)