Hi,

obviously exports Algebra the functions leftRecip and rightRecip. But
the only place where these functions are implemented is in ncalg.spad.

(109) -> Fraction Integer has Algebra Integer

   (109)  true
                                            Type: Boolean

(110) -> x: Fraction Integer := 2/3

          2
   (110)  -
          3
                                   Type: Fraction(Integer)
(111) -> leftRecip x
   Internal Error
   The function leftRecip with signature hashcode is missing from
      domain Fraction(Integer)

But this works.

(111) -> recip x

          3
   (111)  -
          2
                                    Type: Union(Fraction(Integer),...)

Ralf

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