There was no association of IG-sex with a perception towards insufficient money to cover necessities (p = 0.97) but there was a mild trend towards perceived financial insufficiency as it related to purchase of luxuries (p = 0.27).
But he also made use of the diachronic model according to which the necessity of p at t does not imply that, before t, it is necessary that p obtains at t. Boethius developed the diachronic ideas as part of his criticism of Stoic determinism.
And if the falsity of '13 is even' is a matter of logical necessity, then p ∧ (Kp → En) cannot be consistently known and therefore is not Cartesian.
But, analogously, if the truth of En is a matter of logical necessity, then p ∧ (Kp → ¬En) cannot be consistently known and is therefore not Cartesian.
In particular, Divers employs a primitive necessity operator (p 334), and so his proof as it stands would not be available to an advocate of strong modal fictionalism.
(Aronson, 1971; Fair, 1979) But the first explicit formulation was given in a brief suggestion made by Skyrms in 1980, in his book Causal Necessity (1980, p. 111) and the first detailed conserved quantity theory by Dowe (1992).
Boethius thought that the temporal necessity of p can be qualified by shifting attention from temporally definite cases or statements to their temporally indeterminate counterparts (I.121 122; II.242–243; cf. Ammonius 153.24 26).
Others had put much weight on such grammatical matters; for example, Ryle had concluded from "enjoy" being a transitive verb, requiring an object, that enjoyment cannot exist on its own, as a matter of conceptual necessity (1954a, p. 61).
Currently an ongoing discussion about the necessity of p-value adjustment in exploratory epidemiological studies still evolves and with all relevant data reported, final judgment is left to the reader [28], [29].
