[ BlockDefn
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 3
        , sourceColumn = Pos 1
        }
    )
    ( Marker "subseteq" )
    ( DefnPredicate []
        ( PredicateRelation
            ( Command "subseteq" )
        )
        ( NamedVar "A" :|
            [ NamedVar "B" ]
        )
        ( TermSymbol
            ( SymbolPredicate
                ( PredicateRelation
                    ( Symbol "=" )
                )
            )
            [ TermVar
                ( NamedVar "A" )
            , TermVar
                ( NamedVar "B" )
            ]
        )
    )
, BlockDefn
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 7
        , sourceColumn = Pos 1
        }
    )
    ( Marker "pow" )
    ( DefnOp
        [ Just
            ( Command "pow" )
        , Just InvisibleBraceL
        , Nothing
        , Just InvisibleBraceR
        ]
        [ NamedVar "A" ]
        ( TermSymbol
            ( SymbolMixfix
                [ Just
                    ( Command "emptyset" )
                ]
            ) []
        )
    )
, BlockDefn
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 11
        , sourceColumn = Pos 1
        }
    )
    ( Marker "cons" )
    ( DefnOp
        [ Just
            ( Command "cons" )
        , Just InvisibleBraceL
        , Nothing
        , Just InvisibleBraceR
        , Just InvisibleBraceL
        , Nothing
        , Just InvisibleBraceR
        ]
        [ NamedVar "a"
        , NamedVar "B"
        ]
        ( TermSymbol
            ( SymbolMixfix
                [ Just
                    ( Command "emptyset" )
                ]
            ) []
        )
    )
, BlockDefn
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 15
        , sourceColumn = Pos 1
        }
    )
    ( Marker "times" )
    ( DefnOp
        [ Nothing
        , Just
            ( Command "times" )
        , Nothing
        ]
        [ NamedVar "A"
        , NamedVar "B"
        ]
        ( TermSymbol
            ( SymbolMixfix
                [ Just
                    ( Command "emptyset" )
                ]
            ) []
        )
    )
, BlockDefn
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 19
        , sourceColumn = Pos 1
        }
    )
    ( Marker "fld" )
    ( DefnOp
        [ Just
            ( Command "fld" )
        , Just InvisibleBraceL
        , Nothing
        , Just InvisibleBraceR
        ]
        [ NamedVar "R" ]
        ( TermSymbol
            ( SymbolMixfix
                [ Just
                    ( Command "emptyset" )
                ]
            ) []
        )
    )
, BlockDefn
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 23
        , sourceColumn = Pos 1
        }
    )
    ( Marker "preimg" )
    ( DefnOp
        [ Just
            ( Command "preimg" )
        , Just InvisibleBraceL
        , Nothing
        , Just InvisibleBraceR
        , Just InvisibleBraceL
        , Nothing
        , Just InvisibleBraceR
        ]
        [ NamedVar "R"
        , NamedVar "A"
        ]
        ( TermSymbol
            ( SymbolMixfix
                [ Just
                    ( Command "emptyset" )
                ]
            ) []
        )
    )
, BlockAxiom
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 27
        , sourceColumn = Pos 1
        }
    )
    ( Marker "lmao" )
    ( Axiom []
        ( TermSymbol
            ( SymbolPredicate
                ( PredicateRelation
                    ( Command "in" )
                )
            )
            [ TermVar
                ( NamedVar "x" )
            , TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "emptyset" )
                    ]
                ) []
            ]
        )
    )
, BlockInductive
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 31
        , sourceColumn = Pos 1
        }
    )
    ( Marker "fin" )
    ( Inductive
        { inductiveSymbol =
            [ Just
                ( Command "fin" )
            , Just InvisibleBraceL
            , Nothing
            , Just InvisibleBraceR
            ]
        , inductiveParams =
            [ NamedVar "A" ]
        , inductiveDomain = TermSymbol
            ( SymbolMixfix
                [ Just
                    ( Command "pow" )
                , Just InvisibleBraceL
                , Nothing
                , Just InvisibleBraceR
                ]
            )
            [ TermVar
                ( NamedVar "A" )
            ]
        , inductiveIntros = IntroRule
            { introConditions = []
            , introResult = TermSymbol
                ( SymbolPredicate
                    ( PredicateRelation
                        ( Command "in" )
                    )
                )
                [ TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "emptyset" )
                        ]
                    ) []
                , TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "fin" )
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        ]
                    )
                    [ TermVar
                        ( NamedVar "A" )
                    ]
                ]
            } :|
            [ IntroRule
                { introConditions =
                    [ TermSymbol
                        ( SymbolPredicate
                            ( PredicateRelation
                                ( Command "in" )
                            )
                        )
                        [ TermVar
                            ( NamedVar "a" )
                        , TermVar
                            ( NamedVar "A" )
                        ]
                    , TermSymbol
                        ( SymbolPredicate
                            ( PredicateRelation
                                ( Command "in" )
                            )
                        )
                        [ TermVar
                            ( NamedVar "B" )
                        , TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "fin" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ TermVar
                                ( NamedVar "A" )
                            ]
                        ]
                    ]
                , introResult = TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "cons" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "a" )
                        , TermVar
                            ( NamedVar "B" )
                        ]
                    , TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "fin" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "A" )
                        ]
                    ]
                }
            ]
        }
    )
, BlockLemma
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 39
        , sourceColumn = Pos 1
        }
    )
    ( Marker "fin_mono" )
    ( Lemma
        [ Asm ( PropositionalConstant IsTop )
        , Asm ( PropositionalConstant IsTop )
        , Asm
            ( TermSymbol
                ( SymbolPredicate
                    ( PredicateRelation
                        ( Command "subseteq" )
                    )
                )
                [ TermVar
                    ( NamedVar "A" )
                , TermVar
                    ( NamedVar "B" )
                ]
            )
        ]
        ( TermSymbol
            ( SymbolPredicate
                ( PredicateRelation
                    ( Command "subseteq" )
                )
            )
            [ TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "fin" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "A" )
                ]
            , TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "fin" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "B" )
                ]
            ]
        )
    )
, BlockInductive
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 45
        , sourceColumn = Pos 1
        }
    )
    ( Marker "tracl" )
    ( Inductive
        { inductiveSymbol =
            [ Just
                ( Command "tracl" )
            , Just InvisibleBraceL
            , Nothing
            , Just InvisibleBraceR
            ]
        , inductiveParams =
            [ NamedVar "R" ]
        , inductiveDomain = TermSymbol
            ( SymbolMixfix
                [ Nothing
                , Just
                    ( Command "times" )
                , Nothing
                ]
            )
            [ TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "fld" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "R" )
                ]
            , TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "fld" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "R" )
                ]
            ]
        , inductiveIntros = IntroRule
            { introConditions =
                [ TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermVar
                        ( NamedVar "w" )
                    , TermVar
                        ( NamedVar "R" )
                    ]
                ]
            , introResult = TermSymbol
                ( SymbolPredicate
                    ( PredicateRelation
                        ( Command "in" )
                    )
                )
                [ TermVar
                    ( NamedVar "w" )
                , TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "tracl" )
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        ]
                    )
                    [ TermVar
                        ( NamedVar "R" )
                    ]
                ]
            } :|
            [ IntroRule
                { introConditions =
                    [ TermSymbol
                        ( SymbolPredicate
                            ( PredicateRelation
                                ( Command "in" )
                            )
                        )
                        [ TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "pair" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ TermVar
                                ( NamedVar "a" )
                            , TermVar
                                ( NamedVar "b" )
                            ]
                        , TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "tracl" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ 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 "b" )
                            , TermVar
                                ( NamedVar "c" )
                            ]
                        , TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                , introResult = TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "pair" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "a" )
                        , TermVar
                            ( NamedVar "c" )
                        ]
                    , TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "tracl" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                }
            ]
        }
    )
, BlockInductive
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 53
        , sourceColumn = Pos 1
        }
    )
    ( Marker "quasirefltracl" )
    ( Inductive
        { inductiveSymbol =
            [ Just
                ( Command "qrefltracl" )
            , Just InvisibleBraceL
            , Nothing
            , Just InvisibleBraceR
            ]
        , inductiveParams =
            [ NamedVar "R" ]
        , inductiveDomain = TermSymbol
            ( SymbolMixfix
                [ Nothing
                , Just
                    ( Command "times" )
                , Nothing
                ]
            )
            [ TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "fld" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "R" )
                ]
            , TermSymbol
                ( SymbolMixfix
                    [ Just
                        ( Command "fld" )
                    , Just InvisibleBraceL
                    , Nothing
                    , Just InvisibleBraceR
                    ]
                )
                [ TermVar
                    ( NamedVar "R" )
                ]
            ]
        , inductiveIntros = IntroRule
            { introConditions =
                [ TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermVar
                        ( NamedVar "a" )
                    , TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "fld" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                ]
            , introResult = TermSymbol
                ( SymbolPredicate
                    ( PredicateRelation
                        ( Command "in" )
                    )
                )
                [ TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "pair" )
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        ]
                    )
                    [ TermVar
                        ( NamedVar "a" )
                    , TermVar
                        ( NamedVar "a" )
                    ]
                , TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "qrefltracl" )
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        ]
                    )
                    [ TermVar
                        ( NamedVar "R" )
                    ]
                ]
            } :|
            [ IntroRule
                { introConditions =
                    [ TermSymbol
                        ( SymbolPredicate
                            ( PredicateRelation
                                ( Command "in" )
                            )
                        )
                        [ TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "pair" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ TermVar
                                ( NamedVar "a" )
                            , TermVar
                                ( NamedVar "b" )
                            ]
                        , TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "qrefltracl" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ 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 "b" )
                            , TermVar
                                ( NamedVar "c" )
                            ]
                        , TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                , introResult = TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "pair" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "a" )
                        , TermVar
                            ( NamedVar "c" )
                        ]
                    , TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "qrefltracl" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                }
            ]
        }
    )
, BlockInductive
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 61
        , sourceColumn = Pos 1
        }
    )
    ( Marker "refltracl" )
    ( Inductive
        { inductiveSymbol =
            [ Just
                ( Command "refltracl" )
            , Just InvisibleBraceL
            , Nothing
            , Just InvisibleBraceR
            , Just InvisibleBraceL
            , Nothing
            , Just InvisibleBraceR
            ]
        , inductiveParams =
            [ NamedVar "A"
            , NamedVar "R"
            ]
        , inductiveDomain = TermSymbol
            ( SymbolMixfix
                [ Nothing
                , Just
                    ( Command "times" )
                , Nothing
                ]
            )
            [ TermVar
                ( NamedVar "A" )
            , TermVar
                ( NamedVar "A" )
            ]
        , inductiveIntros = IntroRule
            { introConditions =
                [ TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermVar
                        ( NamedVar "a" )
                    , TermVar
                        ( NamedVar "A" )
                    ]
                ]
            , introResult = TermSymbol
                ( SymbolPredicate
                    ( PredicateRelation
                        ( Command "in" )
                    )
                )
                [ TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "pair" )
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        ]
                    )
                    [ TermVar
                        ( NamedVar "a" )
                    , TermVar
                        ( NamedVar "a" )
                    ]
                , TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "refltracl" )
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        ]
                    )
                    [ TermVar
                        ( NamedVar "A" )
                    , TermVar
                        ( NamedVar "R" )
                    ]
                ]
            } :|
            [ IntroRule
                { introConditions =
                    [ TermSymbol
                        ( SymbolPredicate
                            ( PredicateRelation
                                ( Command "in" )
                            )
                        )
                        [ TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "pair" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ TermVar
                                ( NamedVar "a" )
                            , TermVar
                                ( NamedVar "b" )
                            ]
                        , TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "refltracl" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ TermVar
                                ( NamedVar "A" )
                            , 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 "b" )
                            , TermVar
                                ( NamedVar "c" )
                            ]
                        , TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                , introResult = TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "pair" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "a" )
                        , TermVar
                            ( NamedVar "c" )
                        ]
                    , TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "refltracl" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "A" )
                        , TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                }
            ]
        }
    )
, BlockInductive
    ( SourcePos
        { sourceName = "test/examples/inductive.tex"
        , sourceLine = Pos 69
        , sourceColumn = Pos 1
        }
    )
    ( Marker "acc" )
    ( Inductive
        { inductiveSymbol =
            [ Just
                ( Command "acc" )
            , Just InvisibleBraceL
            , Nothing
            , Just InvisibleBraceR
            ]
        , inductiveParams =
            [ NamedVar "R" ]
        , inductiveDomain = TermSymbol
            ( SymbolMixfix
                [ Just
                    ( Command "fld" )
                , Just InvisibleBraceL
                , Nothing
                , Just InvisibleBraceR
                ]
            )
            [ TermVar
                ( NamedVar "R" )
            ]
        , inductiveIntros = IntroRule
            { introConditions =
                [ TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermVar
                        ( NamedVar "a" )
                    , TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "fld" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "R" )
                        ]
                    ]
                , TermSymbol
                    ( SymbolPredicate
                        ( PredicateRelation
                            ( Command "in" )
                        )
                    )
                    [ TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "preimg" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermVar
                            ( NamedVar "R" )
                        , TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "cons" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ TermVar
                                ( NamedVar "a" )
                            , TermSymbol
                                ( SymbolMixfix
                                    [ Just
                                        ( Command "emptyset" )
                                    ]
                                ) []
                            ]
                        ]
                    , TermSymbol
                        ( SymbolMixfix
                            [ Just
                                ( Command "pow" )
                            , Just InvisibleBraceL
                            , Nothing
                            , Just InvisibleBraceR
                            ]
                        )
                        [ TermSymbol
                            ( SymbolMixfix
                                [ Just
                                    ( Command "acc" )
                                , Just InvisibleBraceL
                                , Nothing
                                , Just InvisibleBraceR
                                ]
                            )
                            [ TermVar
                                ( NamedVar "R" )
                            ]
                        ]
                    ]
                ]
            , introResult = TermSymbol
                ( SymbolPredicate
                    ( PredicateRelation
                        ( Command "in" )
                    )
                )
                [ TermVar
                    ( NamedVar "a" )
                , TermSymbol
                    ( SymbolMixfix
                        [ Just
                            ( Command "acc" )
                        , Just InvisibleBraceL
                        , Nothing
                        , Just InvisibleBraceR
                        ]
                    )
                    [ TermVar
                        ( NamedVar "R" )
                    ]
                ]
            } :| []
        }
    )
]