ComplexIndex is the head of a "complex conjugate index", which is understood as just another index.
See also: LorentzIndex.
![[Graphics:Images/index_gr_1.gif]](Images/index_gr_1.gif)
![[Graphics:Images/index_gr_2.gif]](Images/index_gr_2.gif){kind=small}
![[Graphics:Images/index_gr_3.gif]](Images/index_gr_3.gif)
![[Graphics:Images/index_gr_4.gif]](Images/index_gr_4.gif){kind=small}
![[Graphics:Images/index_gr_5.gif]](Images/index_gr_5.gif)
![[Graphics:Images/index_gr_6.gif]](Images/index_gr_6.gif){kind=small}
![[Graphics:Images/index_gr_7.gif]](Images/index_gr_7.gif)
![[Graphics:Images/index_gr_8.gif]](Images/index_gr_8.gif){kind=small}
![[Graphics:Images/index_gr_9.gif]](Images/index_gr_9.gif)
![[Graphics:Images/index_gr_10.gif]](Images/index_gr_10.gif){kind=small}
![[Graphics:Images/index_gr_11.gif]](Images/index_gr_11.gif)
![[Graphics:Images/index_gr_12.gif]](Images/index_gr_12.gif){kind=small}
![[Graphics:Images/index_gr_13.gif]](Images/index_gr_13.gif)
ComplexConjugate
Contract![[Graphics:Images/index_gr_14.gif]](Images/index_gr_14.gif){kind=small}