 I do not mean that tomorrow perhaps will be sunny in London, or maybe not; I mean that indeed it will be the case; but on the other hand I do not mean that there is no other option, or that it must be so. One should be aware that in adopting the Peircean system, one would have to consider this everyday intuition illusory — there really is only the “possibly”, or the “necessarily” (corresponding to \(fp\) and \(Fp\) mentioned in the (g) and (d) clauses in section 4.2). In fact, logically speaking, in this system “it will be sunny in London tomorrow” would have to be considered as equivalent to either