<<< mml $\underset{\dot{}}{x}\ne \underset{\dot{}}{x}=\underset{\dot{}}{x}=\underset{\dot{}}{x}$ >>> native [ EUnder False (EIdentifier "x") (ESymbol Accent "\729") , ESymbol Rel "\8800" , EUnder False (EIdentifier "x") (ESymbol Ord "\729") , ESymbol Rel "=" , EUnder False (EIdentifier "x") (ESymbol Ord "\729") , ESymbol Rel "=" , EUnder False (EIdentifier "x") (ESymbol Ord "\729") ]