# N-body operators

Base.inMethod
in(orbital, co::ContractedOperator)

Test if orbital is among the right set of orbitals of the ContractedOperator co. Useful to test if co is an integral operator with respect to orbital.

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Base.inMethod
in(corbital::Conjugate, co::ContractedOperator)

Test if corbital is among the left set of orbitals of the ContractedOperator co. Useful to test if co is an integral operator with respect to corbital.

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LinearAlgebra.ishermitianMethod
ishermitian(op::QuantumOperator)

By default, all QuantumOperators are Hermitian; this can be overridden for subtypes to explicitly declare an operator non-Hermitian.

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