week #3

This week, we are continuing on basic symbols like conjunction, disjunction, negation and implication. And especially  the differences between predicates (∧and ∨) and sets (∩ and ∪). What's more, some more complicated examples of negation and the truth table were introduced by professors. Through all those new things I learned, I personally think that the truth table makes more sense to me as I can't even figure out what the relationship between variables P , Q and disjunction, conjunction and implication of P, Q until I learned the truth table. It really helps a lot on proving.Although I get more familiar with the teaching style and get more used to the university life than the last week, there is still something dissatisfied happening to me, which is the first quiz that I ever took in the university. It's actually not as difficult as I thought and the format of quiz is exactly the same as the practice that appears on the course website. But I still get a worse mark on it, which makes me frustrated. After the quiz, I do think about the reason and I think the most possible reason is that I still lack of the understanding of the knowledge which is on the quiz so that I can't figure out what to do with it once it's only changed a little bit  but with the same knowledge as the practice.
In conclusion, as this course is necessary for computer science program, I'll always keep in mind  that how important for me to learn it well and I'll make all those stuff which is unclear to me clear.