texmath-0.13.1.2: test/writer/eqn/mfracSinheritance14.test

<<< native
[ EFraction
    NormalFrac
    (EFraction
       NormalFrac
       (ENumber "1")
       (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ]))
    (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ])
, EFraction
    NormalFrac
    (ENumber "1")
    (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ])
, EFraction
    NormalFrac
    (EFraction
       NormalFrac
       (ENumber "1")
       (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ]))
    (EGrouped [ EIdentifier "y" , ESymbol Bin "+" , ENumber "3" ])
]
>>> eqn
{1 over {y + 3}} over {y + 3} 1 over {y + 3} {1 over {y + 3}} over {y + 3}