fact: Definition statementAtS (b:BLOCK.t) (pc1:PC) : {s:STATEMENT.t | In s (statements b) & eq_PC_Stmt pc1 s}+{AllS (neq_PC_Stmt pc1) (statements b)}.
imports: JML(JMLProgramPlus) Coq(ZArith) JML(ZHelpers) JML(LogicHelpers) Coq(Bool) Coq(Sumbool) Coq(Ndec) JML(PosAux) JML(EqBoolAux) Coq(Relation_Operators) Coq(List) JML(ListFunctions) JML(ListHelpers) JML(OptionHelpers)