 The later Wittgenstein maintains this position in various passages in RFM (Bernays 1959: 11–12). For example, to someone who says that since “the rule of expansion determine[\(s\)] the series completely”, “it must implicitly determine all questions about the structure of the series”, Wittgenstein replies: “Here you are thinking of finite series” (RFM V, §11). If PIC were a mathematical question (or problem)—if it were finitistically restricted—it would be algorithmically decidable, which it is not (RFM V, §21; LFM 31–32, 111, 170; WVC 102–03). As Wittgenstein says at (RFM V, §9): “The question… changes its status, when it becomes decidable”, “[f]or a connexion is made then, which formerly was not there”. And if, moreover, one invokes the Law of the Excluded Middle to establish that PIC is a mathematical proposition—i.e., by saying that one of these “two pictures… must correspond to the fact” (RFM V, §10)—one simply begs the question (RFM V, §12), for if we have doubts about the mathematical status of PIC, we will not be swayed by a person who asserts “PIC \(\vee \neg\)PIC” (RFM VII, §41; V, §13).