structure HOL =
struct
val thy = the_context ();
val plusI = plusI;
val minusI = minusI;
val timesI = timesI;
val powerI = powerI;
val eq_reflection = eq_reflection;
val refl = refl;
val subst = subst;
val ext = ext;
val selectI = selectI;
val impI = impI;
val mp = mp;
val True_def = True_def;
val All_def = All_def;
val Ex_def = Ex_def;
val False_def = False_def;
val not_def = not_def;
val and_def = and_def;
val or_def = or_def;
val Ex1_def = Ex1_def;
val iff = iff;
val True_or_False = True_or_False;
val Let_def = Let_def;
val if_def = if_def;
val arbitrary_def = arbitrary_def;
end;
AddXIs [disjI1, disjI2];
open HOL;