Bill, since we can't persuade each other, I suggest you to convert
some Union("failed"..) to Maybe using 'coerce/retract', for example
rewrite function 'recip'.Then you will find using 'coerce/retract' is verbose and unreadable. -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/fricas-devel. For more options, visit https://groups.google.com/d/optout.
