Isaac Levi (1996) has offered positive arguments in favor of having a notion of epistemic supposition that does not coincide with AGM.
In the case of possibility: we are justified in asserting that \(A\) is possible when a robust and good counterfactual development of the supposition that \(A\) does not yield a contradiction.
It was my first peek into the supposition that my hair does not belong to me but, rather, is part of some trenchant responsibility -- a birthright, if you will -- and deeply engaged in identity politics whether or not the body/mind attached to it desires such.
For instance, "process equivalence" does not imply a supposition of total equivalence, rather a supposition of significantly more similarity of biological processes compared to "process variability".
SSA is a non-parametric technique, does not require any supposition to generate the observed signal, and provides an effective way to recognize weak transient PQ signal.
The supposition is merely confused if it does not allow for descent to a certain singular nor a universal — in other words, a (predicate- term has the supredicate- termsa tantum whas ithesuppositionibutively of its extension.
Peter, for example, does not mention material supposition, though William of Sherwood includes it in his Introductiones in logicam, 5.2 (Norman Kretzmann, William of Sherwood's 'Introduction to Logic' (Minneapolis: University of Minnesota Press, 1966): 107).
Similarly, Hume appeals, in the Enquiry, to the supposition that "the course of nature" does not change (EHU 4.21; SBN 37 38) or, equivalently, that "the future will be conformable to the past" (EHU 4.19; SBN 35 36).
However, the observation that changing the NPT motif of DrAqp3b into NPA increased both water and ethylene glycol permeability does not support this supposition.
Moreover, it does not invoke dubious suppositions about an intimate connection between natural selection and the precise details of neuronal hardware and its operation.
