axioms : string -> (string * thm) list
- axioms "bool";
> val it =
    [("INFINITY_AX", |- ?f. ONE_ONE f /\ ~ONTO f),
     ("SELECT_AX", |- !P x. P x ==> P ($@ P)),
     ("ETA_AX", |- !t. (\x. t x) = t),
     ("BOOL_CASES_AX", |- !t. (t = T) \/ (t = F))] : (string * thm) list