fact: Definition bench := Ands (Iff be1_h be2_h :: Iff be1_i be2_i :: Iff be1_j be2_j :: Iff be1_k be2_k :: Iff be1_m be2_m :: Iff be1_n be2_n :: Iff be1_o be2_o :: Iff be1_p be2_p :: Iff be1_q be2_q :: nil).