<<< native [ ESuper (EIdentifier "f") (ESymbol Accent "'") , EDelimited "(" ")" [ Right (EIdentifier "x") ] , ESymbol Rel "=" , ESuper (EIdentifier "f") (ESymbol Ord "\8242") , EDelimited "(" ")" [ Right (EIdentifier "x") ] ] >>> mml $$f^{\text{'}}\left(x\right)=f^{\prime }\left(x\right)$$