If the gains and losses justifying acceptance of presuppositions were pragmatic (e.g., happiness, prestige, wealth), then acceptance would only be practically rational, not epistemically rational.
Focused on practical, real-world effects and usefulness rather than just abstract theory.
epistemology(Contrasted with purely descriptive scientific inquiry)
A normative enterprise that tells us how we ought to reason from evidence and how we ought to justify our beliefs, as distinct from merely describing how we do reason or justify beliefs
presuppositions(Collingwood, An Essay on Metaphysics)
The foundational assumptions or commitments that govern thought within a given domain of inquiry, which Collingwood later identified as the proper subject matter of philosophical (metaphysical) investigation.
A final view of a priori justification according to which it does not rest on nonexperiential evidence holds that we are entitled to accept certain propositions on no evidence and that entitlement on no grounds or evidence is what a priori justification amounts to. To be entitled to accept, or trust, some presupposition is for it to be rational to accept or trust it, though this is supposed to be different from being justified in believing it. Crispin Wright proposes that the laws of logic and t