\(①\)如果\(\overrightarrow{OP}= \dfrac{1}{2}\overrightarrow{OA}-\overrightarrow{OB}+ \dfrac{3}{2}\overrightarrow{OC}.\) 则\(P\),\(A\),\(B\),\(C\)四点共面\(;\)
\(②\)若向量\(e_{1}\),\(e_{2}\),\(e_{3}\)是三个不共面的向量,且满足等式\(k_{1}e_{1}+k_{2}e_{2}+k_{3}e_{3}=0\),则\(k_{1}=k_{2}=k_{3}=0\).
\(③\)已知空间向量\(a\),\(b\),\(c\),则对于空间的任意一个向量\(p\)总存在实数\(x\),\(y\),\(z\)使得\(p=xa+yb+zc\).
\(④\)若\(p=xa+yb\),则\(p\)与\(a\),\(b\)共面;
其中是真命题的序号是________\((\)把所有真命题的序号都填上\()\).