Objection to lack of jurisdiction based on the invocation of the existence of an arbitration agreement. Allegations by the other party that the arbitration clause would be null and void. Interpretation of the competence-competence principle. Possibility of the judiciary ruling on the validity or invalidity of the arbitration clause before the arbitrator. Validity of arbitration clauses that sufficiently describe how the arbitration proceedings will be conducted. Dismissal of the lawsuit without resolution on the merits: