My updated patch is here: https://github.com/oldk1331/fricas/commit/0bf5c58d3cf72fd6429313c62e5c28bf1312451f.patch
Following similar logic, "nodes" and "leaves" should give error when argument is empty; but "leaf?", "child?", "node?" should not give error, they should return true when the relation is satisfied and return false otherwise (including when argument is empty). -- 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.
