Cardinality of a set


A =
,
x `in` ,
x is






 A = {x<=5; x in N}; B = {2<=x<=8; x in N}; C = {x<=3; x in N};
 A = {x^2<10; x in N}; B = {x<=1; x in N}; C = {1<=x<5; x in N};
 A = {1,2,3,4}; B = {3,4,5}; C = {1,3,5};
 A = {1,2,3,4}; B = {3,4,9,11}; C = {2,11,18,22};
 A = {2,3,6}; B = {3,5,6}; U = {1,2,3,4,5,6};
 A = {x<=9; x in N}; B = {3<=x<=7; x is odd}; C = {1<x<7; x is even};
 A = {1,2,3}; B = {2,3};
 A = {x^32<=25;x in N}; B = {1<x<5; x in N}; C = {x^4=81;x in N};
 A = {x^21 < 10;x in Z}; B = {x1<2; x in N}; C = {x<=1;x in Z};
 A = {x^2<10; x in N}; B = {2,4,6}; C = {x^33x^24x=0}; U = {x<=10;x in N};

