ñëéîåè ìåâéåú
ùúé öåøåú äñøèåè äàôùøéåú ìëì àçã îñåâé äùòøéí, ðåáòåú ìîòùä îëììé ãä-îåøâï. äñøèåèéí ðåöøå áëãé ìäñáéø áñøèåè àú äôåð÷öéä äìåâéú äîúáöòú áàåúå ÷èò ùì äîòâì.
_ _ ______
1. A L B = A U B
_ _ ________
2. A U B = A L B
______ ______
_ _ ______
3. A L B = A U B
______
_ _
A L B = A U B
________ ________
_ _ ________
4. A U B = A L B
________
_ _
A U B = A L B
© ëì äæëåéåú ùîåøåú ìîòøëú äîéãò àéúï