public virtual IEnumerable <ProofState> EvalStep(ProofState state0) { var statement = GetStmt(); if (statement == null) { return(null); } return(TacnyInterpreter.EvalStmt(statement, state0)); }
public override IEnumerable <ProofState> EvalStep(ProofState state0) { var statement = GetStmt(); return(TacnyInterpreter.EvalStmt(statement, state0)); }