1.

{:("Column" A,,"Column" B),(if A ={x:x lt11"," x in W},(a),(A)),(if x ={}then"," n(px) ,(b),(B)),("The cardinal number of the set containing the letter of the wordGOOGLE",(c),(1)),(If A sub B "then" A cap B ,(d),(2)),(,(e),(3)),(,(f),(4)):}

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