<<< native [ EDelimited "\10216" "\10217" [ Right (EIdentifier "\968") , Right (EDelimited "|" "|" [ Right (EStyled TextScript [ EIdentifier "T" ]) , Right (EDelimited "{" "}" [ Right (EFraction NormalFrac (EIdentifier "\948") (EGrouped [ EIdentifier "\948" , EIdentifier "\981" ])) , Right (EIdentifier "F") , Right (EDelimited "[" "]" [ Right (EIdentifier "\981") ]) ]) ]) , Right (EIdentifier "\968") ] , ESymbol Rel "=" , ESymbol Bin "\8722" , EStyled TextNormal [ EIdentifier "i" ] , EDelimited "\10216" "\10217" [ Right (EIdentifier "\968") , Right (EDelimited "|" "|" [ Right (EStyled TextScript [ EIdentifier "T" ]) , Right (EDelimited "{" "}" [ Right (EIdentifier "F") , Right (EDelimited "[" "]" [ Right (EIdentifier "\981") ]) , Right (EFraction NormalFrac (EIdentifier "\948") (EGrouped [ EIdentifier "\948" , EIdentifier "\981" ])) , Right (EIdentifier "S") , Right (EDelimited "[" "]" [ Right (EIdentifier "\981") ]) ]) ]) , Right (EIdentifier "\968") ] ] >>> mml $$⟨\psi \left|𝒯\left\{\frac{\delta }{\delta \varphi }F\left[\varphi \right]\right\}\right|\psi ⟩=-\mathrm{i}⟨\psi \left|𝒯\left\{F\left[\varphi \right]\frac{\delta }{\delta \varphi }S\left[\varphi \right]\right\}\right|\psi ⟩$$