Is Imagination A Priori?

Is Imagination A Priori? Draft of 21 July, 2009. Will be subsumed into a longer piece.

Sometimes, we come to new knowledge via imaginative processes; plausibly, sometimes, such imagination plays an indispensably warranting role. Is such a role for imagination inconsistent with the apriority of our new knowledge? Stephen Yablo has argued that a certain kind of imaginative engagement, ‘peeking’, is relevantly like reliance on perceptual experience, and thus precludes apriority. I argue that Yablo’s case against the apriority of peeking is not compelling.