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    I'm struggling to remember them and understand what they do...
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    (Original post by NinCheng)
    I'm struggling to remember them and understand what they do...
    Are there specific symbols that you struggle to remember?

    The most common ones that students mix up are union and intersection. There are simple things like remembering that Union begins with 'U', which is its symnol. So intersection must be the other symbol i.e. the upside down 'U'.

    And it's easy to remember what the intersection is - it's the intersection of two sets.
    And the union is the union of two sets i.e. two sets joined together ignoring repeated elements.
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    There is a neat proof of a theorem called De Morgan's law using Venn diagrams. learnig that would help.

    , what course are you doing where they form an important aspect? That knowledge would help us to help you.
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    Practice, practice, practice. The more you see it, the more you should remember/understand. As above, what is it specifically that you want addressed?
 
 
 
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