SSH 105 Lecture 6: CHAPTER 6 - REASONING BY ANALOGY
3 Dec 2018
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Document Summary
A lot of our ordinary reasoning is based on comparing one thing with another - on analogies. But this sort of reasoning is also common in the natural and social sciences. The form of reasoning by perfect analogy is this. X is p; y is exactly like x in all respects relevant to being p; so y is p too. Validity depends on the claim that the analogues are alike in all relevant respects. To decide whether an analogical claim is true, we need to ask two questions. X is just like y in all relevant respects. 80% of those we surveyed believe that student tuition is too high; So most canadians think that tuition rotates are too high. According to the computer models, the storm should last for about 4 hours; we"d better alert the national guard. According to the map, black market is on this black; so, we must.
