fact: Hypotheses (H : forall (a : Location) (l : list DGTree), Q l -> P (DGNode a l)) (H0 : Q nil) (H1 : forall (t : DGTree), P t -> forall (l : list DGTree ), Q l -> Q (cons t l)).
imports: Coq(List) JML(Stack) Coq(ListSet) Coq(Bool) Coq(ZArith) Coq(Relation_Operators) JML(ListHelpers) Coq(Classical) Coq(DecidableType) Coq(FSetInterface) Coq(FSetProperties) Coq(FSetEqProperties) Coq(FSetFacts) Coq(Sumbool) Coq(Lia)