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Margaret Morrison

PHL314 Oct 8, 2013 categories don't make sense w/o intuitions intuitions gives content to the concept a priori status of intuitions - space and time (they are formal intuitions); also have empirical reality (can experience them in reality outside); can cognize space and time; reality of space and time bound up in objects -formal intuition: space that I manipulate when I do geometry (geometry is synthetic a priori) a priori status of space (A23-24, B38-39) representation of space has to be presupposed if I’m going to refer to human awareness. can't be aware of anything outside myself unless 'outside' exists. when I describe my external experience, I presuppose that space exists if you assume there are objects, there must be space. because objects exist in space. space isn't what exists btw objects. space is where objects exist. that's why space and time are a priori. because they are presupposed when we talk about external reality. so space and time are epistemic conditions when we discuss the possibility of us having human experiences with external reality. we can represent to ourselves space as being empty of objects but can never envision space as not existing. we can imagine no space. but can't say there is no space if we want to have knowledge of reality. epistemic claims not psychological claims: impossible to remove space and time and still have anything to intuit. not like we are just imagining objects in our head, the objects actually exist out there. objects are both a form in our heads and also exist out there. we have a formal intuition of space (otherwise would not be able to create math that applies to space). when we experience a body, we necessarily regard the spatial properties of that body as primary because it is only because of those primary properties that we consider that body as existing. Innate ideas – extension and figure; motion for Kant, innate ideas get their justification from experience. For Kant, to be a body is to have spatial properties and we have to be able to experience it (in extension and figure). so extension and figure are innate ideas that are a priori. Motion is dependent on extension and figure existing. because can't imagine motion existing alone. need motion to pertain to an object. motion is dependent on time because objects move through time. extension, figure and motion are intuitions (they exist in our mind a priori and then we apply them to objects in real world). extension, figure and motion exist in space and time. for De
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