The first question in this chapter is: What is the reason that necessitates the existence of the world such that it is said that the world existed only for such and such a reason? And that is the matter on which the validity of its existence depends. Either it is a cause and requires its effect for its own sake. If this is the case, is it valid for the effect to have two causes or more, or it is not valid? This is to be considered. The rational, not in the positives, and if the causes are multiple, is their multiplicity due to existential entities or are they attributed to a single matter? And then there are matters whose existence depends on a condition that precedes them or conditions, and all of that is united by the name of the cause, and the condition is a rule, and the cause is a rule. So is the world in its lack of the cause that necessitates its existence the effect’s lack of the cause? Or the condition is lacking in the condition, and whichever it is, the other is not, fo