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The Theory Of Knowledge, Evans And Smith

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In presenting their theory of knowledge, Evans and Smith refer to the account of 'proper functioning ' as put forth by Alvin Plantinga. This account is foundational in the development of their own theory, specifically in regards to their conceptual dissection of what constitutes warrant. However, Plantinga 's account of proper functioning supposes a theistic element that generates a discomfort in Evans and Smith, such that their own theory of knowledge tries for a secular, or naturalistic, procedure of understanding proper functions; their desiderata are thus sustainable not by virtue of the existence of a supernatural creator, but via the basic principles of natural selection. In taking this stance, Evans and Smith discover themselves …show more content…

Previous accounts of warrant have mishandled proper function, but also: thought-experiments in which it is generally agreed that warrant has not been achieved can be explained, in some manner, by cognitive malfunction. Proper function can be simply understood, in the general sense, as how something ought to work, should it be working correctly. The bird 's wing should function in a manner that gives it the ability to fly, as should the heart function by pumping blood. A broken wing that cannot be used to fly and a heart that does not pump blood are thus both functioning improperly. Similarly, if we are to have warranted beliefs, we require our cognitive equipment to be functioning in the proper manner. If we believe we see a red table in front of us, in order to be warranted in that belief our eyes must be functioning properly, and all of the parts of our brain concerned with the cognitive processing and realization of this fact must themselves also be functioning properly. Now, it may be considered that someone is very much justified in believing that there is a red table, but unbeknownst to themselves, the red table is the mere product of a very strong and irresistible hallucination. In this case they would not have a warranted belief, as their cognitive apparatus is behaving inappropriately; the processes

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