Wednesday, 23 January 2013

Jan 23 week 2

Week 2 ( more quantifier , symbol , implication )

during this week , we learn more about symbol , implication  and how to convert "english sentence" into symbolic form , so we can evaluate to true or false. These kind of logic question are new and interesting for me. First, I was kinda struggling on the questions until during the tutorial we do more practice and develop more understanding how to deal with these type of question. It is kinda fascinating how there is a alternative solution to a question which state exactly the same idea especially when I can't even  find one solution. O.o

Key note : 
Implication : If P => then Q   ( sometimes , it can go both way )
    P  = antecedent
    Q = consequent    * (sometime , even the implication is true , it doesn't give you causality )
A "and“ B (A ∧ B) =  only be true when both A and B are both true
A "or" B (A ∨ B) = can be true if A or B is true. 
negation = ﹁ , toggle the true value of a statement/

2 comments:

  1. The second solution I gave you to some questions is not really different from the first one. Although the thinking of how to construct each of the statements is different, the statements are actually equivalent; and I think that by the end of this week, you will know how to get the one from the other. To make it more clear, think about -2(x+y) and -2x-2y. They are the same really.

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  2. hopefully it will start making sense at the end of this week

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