EpsContractFreeQ[exp]
returns True
if the expression contains epsilon tensors that can be contracted with each other. The function is optimized for large expressions, i.e. it is not so good as a criterion in e.g. Select
.
Overview, Contract, EpsContract.
[LC[p1, p2, p3, p4]]
FCI
[%] EpsContractFreeQ
[LC[p1, p2, p3, mu] LC[q1, q2, q3, q4]]
FCI
[%]
EpsContractFreeQ