Week3 SLOG

   In this week, 2 new symbols were introduced, conjunction and disjunction. It is interesting that the meanings of 'and' and 'or' in mathematics languages are different from those in our daily languages. And that also reminds me to pay more attention to the meaning of 'and' and 'or' in further studies. I found that negation was a tricky part. Understanding the logic is crucial to negate the statement; therefore, I felt a little challenging to do the negation. However as I practice more, I can gradually understand the method. During the lecture, I also learned several laws that were useful in analyzing the statement; and they are very similar to those in math. Though I'm still not feeling quite comfortable with language of math, I will pay more attention to tutorials and work harder :)