[ Task
    { taskDirectness = Direct
    , taskHypotheses = []
    , taskConjectureLabel = Marker "mathrel_notation_test"
    , taskConjecture = Connected Implication
        ( TermSymbol
            ( SymbolPredicate
                ( PredicateRelation
                    ( Command "in" )
                )
            )
            [ TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "pair" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "x" )
                , TermVar
                    ( NamedVar "y" )
                ]
            , TermVar
                ( NamedVar "R" )
            ]
        )
        ( TermSymbol
            ( SymbolPredicate
                ( PredicateRelation
                    ( Command "in" )
                )
            )
            [ TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "pair" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "x" )
                , TermVar
                    ( NamedVar "y" )
                ]
            , TermVar
                ( NamedVar "R" )
            ]
        )
    }
]