ทบทวนยูเนียนและอินเตอร์เซกชัน

• {a,b,c,d,e,f}
• {a,b,c}

• {b,d,e,f}

• {b}

• {a,b,c,d,e,f}
• {a,b,c}

• ⊘

• {b}

• {1,2,3,4,5,6,7,8,9}

• {3,4,5,6,8}

• {1,2,3,4,5}

• {0,1,2,3,4,5,6,7,8,9}

• {3,4,5,6,8}

• {1,2,3,4,5}

• {a,b,c,d,e,f,g}

• {a,c,e,g}

• {a,b,c,d,e,f,g,h}

• {a,b,c,d,e,f,g}

• {a,c,e,g}

• {a,b,c,d,e,f,g,h}

• {1,2,3,4,6,7,8,9}

• {1,2,3,4,5,6,7,8,9}

• {1,2,3,5,6}

• {1,2,3,4,5,6}

• {1,2,3,4,6,7,8,9}

• {1,2,3,4,5,6,7,8,9}

• {1,2,3,5,6}

• {1,2,3,4,5,6}