Therefore, it follows in this case that necessarily there are several possible worlds, and so since (necessarily P) implies P, there in fact exist several possible worlds, which is not something the fictionalist should countenance.
In the second, it's still unclear whether there in fact exist classified tools that could have been brought to bear on the device in question.
But suppose there in fact existed a wonderful correspondence between our concepts and the world, indeed, a deeply reliable, counterfactual supporting correspondence whereby it was in fact metaphysically impossible for certain claims constitutive of those concepts not to be true.
Even though this seems trivial, the value of this relation becomes clear by considering that if there exists a strong positive correlation between and f, there may in fact exist a small ζ for which Equation (6) is true.
For these last two categories of drugs there does in fact exist a statistically significant difference in the distribution by age (p < 0.001 and p < 0.04 respectively), which on the other hand is not evident in the case of the antipsychotics.
These two phenotypes are not rigid and there may in fact exist a "spectrum" of macrophage activation, involving macrophages with different metabolic and inflammatory signatures, and with different roles in host defense against various pathogens, as well as in wound healing and the resolution of inflammation.
It was held, in the judgment of Lord Radcliffe, 'that there must in fact exist such reasonable grounds, known to the Controller, before he can validly exercise the power' conferred.
Nor would abstractionism face the technical challenges that fictionalism faces, since all the merely possible worlds would in fact exist; there would be no problem of switching back and forth between fictional and literal discourse.
Possibilism denies thesis A. More specifically, according to the possibilist, there are things that do not, in fact, exist but which could have existed — things like possible Aliens (in the sense above), possible people that were never born, and so on.
