Waldek, I have put your translation of the propositional logic code in here:
https://raw.github.com/martinbaker/fricas/master/src/algebra/boolean.spad.pamphlet In case you would like to include with FriCAS I have added some documentation. It would be better if this were written, or at least checked, by the original author. There is a bug in the functions 'dual' and 'simplify' that is not in OpenAxiom: (8) -> dual(pq) Function: ?=? : (%,%) -> Boolean is missing from domain: PropositionalFormula(Symbol) Internal Error The function = with signature (Boolean)$$ is missing from domain PropositionalFormula(Symbol) '=' is declared in BasicType but it doesn't seem to be defined in PropositionalFormula. I can't see where this is defined in OpenAxiom. Martin -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/fricas-devel?hl=en.
