下列命题正确的是___________\((\)写出所有正确命题的序号\()\).
\(①\)已知\(a,b\in R\),“\(a > 1且b > 1 \)”是“\(ab > 1\)”的充要条件;
\(②\)已知平面向量\(\overrightarrow{a} \),\(\overrightarrow{b} \),“\(\left| \overrightarrow{a}\right| > 1 \)且\(\left| \overrightarrow{b}\right| > 1 \)”是“\(\left| \overrightarrow{a}+ \overrightarrow{b}\right| > 1 \)”的必要不充分条件;
\(③\)已知\(a,b\in R\),“\({{a}^{2}}+{{b}^{2}}\geqslant 1\)”是“\(\left| a \right|+\left| b \right|\geqslant 1\)”的充分不必要条件;
\(④\)命题\(p\):“\(\exists {{x}_{0}}\in R,{{e}^{{{x}_{0}}}}\geqslant {{x}_{0}}+1\)”的否定为\(\neg p\):“\(\forall x\in R,{{e}^{x}} < x+1\)”\(.\)