Subsets & Sets     Math Help     Game Tips:

- In this game, the rectangular shape 'U' represents the Universal set of members for all possible sets.

- If set P is a circular region inside U, then the set 'not P' is the region outside circle P and inside U.
   The set 'not P' refers to all members of set U that are not members of set P.

- When selecting members from two sets, the word 'and' refers to the overlapping region P and Q.
   P and Q is called the intersection set.
   If set P is completely inside set Q, then P is called a subset of Q resulting in (P and Q) = P.
   If set Q is completely inside set P, then Q is called a subset of P resulting in (P and Q) = Q.
   If set P and set Q do not overlap , then they are disjoint sets with the result (P and Q) = empty = Null set.

- When selecting members from two sets, the word 'or' refers to the entire region including P or Q.
   P or Q is called the union set.    [The 'exclusive or' concept is not used in this game.]
   If set P is completely inside set Q, then P is a subset of Q resulting in (P or Q) = Q.
   If set Q is completely inside set P, then Q is a subset of P resulting in (P or Q) = P.

- It may take a minute to load the game at dial-up speeds.
- The game can be played using the mouse by itself or using the keyboard by itself.
- The score report automatically appears after you have made 10 choices.
- The Subset score is based on your choices only and does not count the bird hits.
- The Game score is reduced by the number of bird hits.
- If the game doesn't respond to keyboard input,
    click inside the game area to reset the game's focus.
- The game speeds up as your score increases. Adjust this with the - and + keys.
- Refresh/Reload the web page to start over again.



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