EpsChisholm[expr] substitutes for a gamma matrix contracted with a Levi-Civita tensor (Eps) the Chisholm identity.
See also: Chisholm.
![[Graphics:Images/index_gr_1.gif]](Images/index_gr_1.gif)
![[Graphics:Images/index_gr_2.gif]](Images/index_gr_2.gif)
![[Graphics:Images/index_gr_3.gif]](Images/index_gr_3.gif)
Eps
EpsEvaluate![[Graphics:Images/index_gr_4.gif]](Images/index_gr_4.gif){kind=small}