logico-

Yet what is to be the status of a law of optimality to the effect that “whatever possibility is for the best is ipso facto the possibility that is actualized.” It is certainly not a logico-conceptually necessary truth; from the angle of theoretical logic it has to be seen as a contingent fact — albeit one not about nature as such, but rather one about the manifold of real possibility that underlies it. Insofar as it is necessary at all it obtains as a matter of ontological rather than logico-conceptual necessity, while the realm of possibility as a whole is presumably constituted by considerations of logico-metaphysical necessity alone.¹⁴ ¹⁴ The operative perspective envisions a threefold order of necessity/possibility: the logico-conceptual, the ontological or proto-physical, and the physical.

2000 June, Nicholas Rescher, “Optimalism and Axiological Metaphysics”, in The Review of Metaphysics, LIII, № 4, § iii, page 815