Hello, all:
I just used sage to deal with some symbolic logic problems. We could do
this::
sage: import sage.logic.propcalc as propcalcsage: f =
propcalc.formula("a&((b|c)^a->c)<->b")
sage: f.convert_cnf_table()sage: f(a|~b|c)&(a|~b|~c)&(~a|b|~c)
To my surprise, I can covert to DNF(Disjunctive normal form).
sage: f.convert_dnf_table() # ERROR
Did I miss something? If there is no DNF support for sage, em... I will try to
write a patch for sage, seems this is a easy job.
Regards,
Mizuchi
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