fact: Definition BDDor (cfg : BDDconfig) (memo : BDDor_memo) (node1 node2 : ad) := BDDor_1_1 cfg memo node1 node2 (S (max (nat_of_N (var cfg node1)) (nat_of_N (var cfg node2)))).
imports: Bool Sumbool Arith ZArith NArith Nnat Ndec Ndigits IntMap(Allmaps) Wf_nat BDDvar_ad_nat bdd1 bdd2 bdd3 bdd4 bdd5_1 bdd5_2 bdd6 bdd7 BDDdummy_lemma_2 BDDdummy_lemma_3 BDDdummy_lemma_4 bdd8 bdd9