type data
type data = (string * string) * (thm * class)
An element ((thy,name), (th,cl)) means that th is a theorem with classification class, stored in theory segment thy under name.
- DB.find "BOOL_CASES_AX";
> val it = [(("bool", "BOOL_CASES_AX"), 
            (|- !t. (t = T) \/ (t = F), Axm))] 
   : ((string * string) * (thm * class)) list