COG250Y1 Lecture Notes - Lecture 12: Marsupial, Microworlds, Shrdlu
14 Mar 2017
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As long as the system can reliably identify move the tokens, then the medium is irrelevant. Mr is important because it means there are two formal levels of discourse: software and hardware. Recall that we want positive and reliable read-write cycles . write: means to identify type of token. Specify range in which variation is irrelevant, or unimportant. For example: take a rembrandt painting slowly losing them, since there is no reliable way to digitalize them. When we reproduce them, they are considered frauds, (cid:498)fakes(cid:499). In contrast, a shakespeare poem will be preserved forever, as it can be reliably digitalized. The next important part of a formal system. This aspect is to make sure that whatever machine we create will satisfy the ni. This brings up the issue of following rules. Just being able to describe a system mathematically, doesn(cid:495)t mean it(cid:495)s following the rules of math (has to do with the normativity issue that descartes brought up).
