Lecture 2(Wedneday) - ambiguity When you use a natural...

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Unformatted text preview: ambiguity When you use a natural language (English, Chinese) you can make it as precise or ambiguous as you need. For some purposes (jokes, gossip) rich ambiguity is essential. For other purposes (getting instructions on heart surgery) precision is essential. We're all equipped to work in both modes. Work out the multiple meanings of these headlines, then try to write an explicit version for each meaning. Prostitutes appeal to Pope Death may cause loneliness, feelings of isolation Two sisters reunite after 18 years at checkout counter Iraqi head seeks arms Police begin campaign to run down jaywalkers slide 6 precision We achieve precision by restricting our language. For certain jobs, in certain communities, we use some words or symbols with restricted meanings. Becoming part of the \club" involves learning the de nitions of these meanings | my kids don't mean the same thing as I do when they say something is \sick" or when they say \snap." Some words and symbols used in special ways by mathematicians: continuous eld group for all (each) 8 there is (exists) 9 slide 7 balance...
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This note was uploaded on 10/13/2011 for the course COMPUTER S CSC 165 taught by Professor Dannyheap during the Fall '10 term at University of Toronto- Toronto.

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Lecture 2(Wedneday) - ambiguity When you use a natural...

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