fact: Definition cell_connection_table (cells : seq cell) (source_i target_i : nat) := bfs _ _ _ bfs_find bfs_add (reverse_step cells) eq_nat_dec (List.length cells) ((target_i, target_i) :: nil) (natmap.empty nat) source_i 0.
imports: mathcomp(all_ssreflect) ZArith QArith List String OrderedType OrderedTypeEx FMapAVL