Set: pp::colors
  Set: pp::unicode
Failed to solve
A : (Type U), A' : (Type U), H : A == A' ⊢
(?M::3 ≈ (Type U)) ⊕ (?M::3 ≈ (Type M)) ⊕ (?M::3 ≈ (Type 1)) ⊕ (?M::3 ≈ Type) ⊕ (?M::3 ≈ Bool)
    Destruct/Decompose
    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≺ (Type U)
        (line: 1: pos: 44) Type of argument 1 must be convertible to the expected type in the application of
            @Symm
        with arguments:
            ?M::0
            ?M::1
            ?M::2
            H
    Failed to solve
    A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::5 ≈ (Type U)) ⊕ (?M::5 ≈ (Type U+1))
        Destruct/Decompose
        A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::5
            Propagate type, ?M::2 : ?M::5
                Assignment
                A : (Type U), A' : (Type U), H : A == A' ⊢ A' ≈ ?M::2
                    Destruct/Decompose
                    A : (Type U), A' : (Type U), H : A == A' ⊢ A == A' ≺ ?M::1 == ?M::2
                        (line: 1: pos: 44) Type of argument 4 must be convertible to the expected type in the application of
                            @Symm
                        with arguments:
                            ?M::0
                            ?M::1
                            ?M::2
                            H
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U)) ⊕ (?M::0 ≈ (Type U+1))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U)
                        Assumption 1
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ (Type U)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U)
                            Assumption 3
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type U)
                        Assumption 0
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ (Type U)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 4
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type U)
                        Assumption 0
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U+1)) ⊕ (?M::0 ≈ (Type U+2))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U+1)
                        Assumption 5
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ (Type U)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 7
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type U)
                        Assumption 0
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ (Type U)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+2)
                            Assumption 8
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type U)
                        Assumption 0
    Failed to solve
    A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::5 ≈ (Type U)) ⊕ (?M::5 ≈ (Type U+1))
        Destruct/Decompose
        A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::5
            Propagate type, ?M::2 : ?M::5
                Assignment
                A : (Type U), A' : (Type U), H : A == A' ⊢ A' ≈ ?M::2
                    Destruct/Decompose
                    A : (Type U), A' : (Type U), H : A == A' ⊢ A == A' ≺ ?M::1 == ?M::2
                        (line: 1: pos: 44) Type of argument 4 must be convertible to the expected type in the application of
                            @Symm
                        with arguments:
                            ?M::0
                            ?M::1
                            ?M::2
                            H
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U)) ⊕ (?M::0 ≈ (Type U+1))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U)
                        Assumption 10
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ (Type M)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U)
                            Assumption 12
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type M)
                        Assumption 9
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ (Type M)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 13
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type M)
                        Assumption 9
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U+1)) ⊕ (?M::0 ≈ (Type U+2))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U+1)
                        Assumption 14
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ (Type M)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 16
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type M)
                        Assumption 9
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ (Type M)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+2)
                            Assumption 17
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type M)
                        Assumption 9
    Failed to solve
    A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::5 ≈ (Type U)) ⊕ (?M::5 ≈ (Type U+1))
        Destruct/Decompose
        A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::5
            Propagate type, ?M::2 : ?M::5
                Assignment
                A : (Type U), A' : (Type U), H : A == A' ⊢ A' ≈ ?M::2
                    Destruct/Decompose
                    A : (Type U), A' : (Type U), H : A == A' ⊢ A == A' ≺ ?M::1 == ?M::2
                        (line: 1: pos: 44) Type of argument 4 must be convertible to the expected type in the application of
                            @Symm
                        with arguments:
                            ?M::0
                            ?M::1
                            ?M::2
                            H
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U)) ⊕ (?M::0 ≈ (Type U+1))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U)
                        Assumption 19
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ (Type 1)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U)
                            Assumption 21
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type 1)
                        Assumption 18
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ (Type 1)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 22
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type 1)
                        Assumption 18
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U+1)) ⊕ (?M::0 ≈ (Type U+2))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U+1)
                        Assumption 23
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ (Type 1)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 25
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type 1)
                        Assumption 18
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ (Type 1)
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+2)
                            Assumption 26
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ (Type 1)
                        Assumption 18
    Failed to solve
    A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::5 ≈ (Type U)) ⊕ (?M::5 ≈ (Type U+1))
        Destruct/Decompose
        A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::5
            Propagate type, ?M::2 : ?M::5
                Assignment
                A : (Type U), A' : (Type U), H : A == A' ⊢ A' ≈ ?M::2
                    Destruct/Decompose
                    A : (Type U), A' : (Type U), H : A == A' ⊢ A == A' ≺ ?M::1 == ?M::2
                        (line: 1: pos: 44) Type of argument 4 must be convertible to the expected type in the application of
                            @Symm
                        with arguments:
                            ?M::0
                            ?M::1
                            ?M::2
                            H
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U)) ⊕ (?M::0 ≈ (Type U+1))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U)
                        Assumption 28
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ Type
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U)
                            Assumption 30
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Type
                        Assumption 27
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ Type
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 31
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Type
                        Assumption 27
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U+1)) ⊕ (?M::0 ≈ (Type U+2))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U+1)
                        Assumption 32
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ Type
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 34
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Type
                        Assumption 27
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ Type
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+2)
                            Assumption 35
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Type
                        Assumption 27
    Failed to solve
    A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::5 ≈ (Type U)) ⊕ (?M::5 ≈ (Type U+1))
        Destruct/Decompose
        A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::5
            Propagate type, ?M::2 : ?M::5
                Assignment
                A : (Type U), A' : (Type U), H : A == A' ⊢ A' ≈ ?M::2
                    Destruct/Decompose
                    A : (Type U), A' : (Type U), H : A == A' ⊢ A == A' ≺ ?M::1 == ?M::2
                        (line: 1: pos: 44) Type of argument 4 must be convertible to the expected type in the application of
                            @Symm
                        with arguments:
                            ?M::0
                            ?M::1
                            ?M::2
                            H
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U)) ⊕ (?M::0 ≈ (Type U+1))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U)
                        Assumption 37
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ Bool
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U)
                            Assumption 39
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Bool
                        Assumption 36
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ Bool
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 40
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Bool
                        Assumption 36
        Failed to solve
        A : (Type U), A' : (Type U), H : A == A' ⊢ (?M::0 ≈ (Type U+1)) ⊕ (?M::0 ≈ (Type U+2))
            Destruct/Decompose
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+1) ≺ ?M::0
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≺ ?M::0
                    (line: 1: pos: 44) Type of argument 3 must be convertible to the expected type in the application of
                        @Symm
                    with arguments:
                        ?M::0
                        ?M::1
                        ?M::2
                        H
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::5 ≈ (Type U+1)
                        Assumption 41
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ Bool
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+2) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+1)
                            Assumption 43
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Bool
                        Assumption 36
            Failed to solve
            A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ Bool
                Substitution
                A : (Type U), A' : (Type U), H : A == A' ⊢ (Type U+3) ≺ ?M::3
                    Propagate type, ?M::0 : ?M::3
                        Assignment
                        A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::0 ≈ (Type U+2)
                            Assumption 44
                    Assignment
                    A : (Type U), A' : (Type U), H : A == A' ⊢ ?M::3 ≈ Bool
                        Assumption 36