reserve o,m for set;
reserve C for Cartesian_category;
reserve a,b,c,d,e,s for Object of C;
reserve C for Cocartesian_category;
reserve a,b,c,d,e,s for Object of C;

theorem
  Hom(EmptyMS C,a) = {init a}
proof
  for f2 being Morphism of EmptyMS C,a holds init a = f2 by Th54;
  hence thesis by Th55,CAT_1:8;
end;
