In+theme+of+contracts+derivatives,+the+missed+knowledge+from+part+of the investor+involves+the+nullity+of the+shop,+for+lack+cause+or+per+indeterminacy+of the object;+such+principle+it does not+it is+relevance+on+front+of the order+public,+not. o+of the order+economic+economic,+Attentive+to+regulation+private+of the+program+contractual+chosen,+yes+that+its+violation+not+detects,+to+senses+of art.+829,+co.+3,+cod.+proc.+civ.+on+headquarters+of+appeal+lock+arbitration+ritual.