Examine whether the following statements are true or false:
(i) {a, b} ⊄ {b, c, a}
(ii) {a, e} ⊂ {x : x is a vowel in the English alphabet}
(iii) {1, 2, 3} ⊂ {1, 3, 5}
(iv) {a} ⊂ {a, b, c}
(v) {a} ∈ {a, b, c}
(vi) {x : x is an even natural number less than 6} ⊂ {x : x is a natural number which divides 36}
(i) Let us assume that A = {a, b} and B = {b, c, a}
Now, we can observe that every element of A is an element of B.
Thus, A⊂ B
∴ The statement is false.
(ii) Let us assume that A = {a, e} and
B = {x: x is a vowel in the English alphabets}
={a, e, i, o, u}
Now, we can observe that every element of A is an element of B.
Thus, A⊂ B
∴ The statement is true.
(iii) Let us assume that A = {1, 2, 3} and B = {1, 3, 5},
Now, we can observe that 2 belongs to A but 2 does not belongs to B.
Thus, A B
∴ The statement is false.
(iv) Let us assume that A = {a} and B = {b, c, a}
Now, we can observe that every element of A is an element of B.
Thus, A⊂ B
∴ The statement is true.
(v) Let us assume that A = {a} and B = {b, c, a}
Now, we can observe that every element of A is an element of B.
Thus, A⊂ B
∴ The statement is false.
(vi) Let us assume that A = {x:x is an even natural number less than 6}
= {2, 4}
and B = {x:x is a natural number which divide 36}
= {1, 2, 3, 4, 6, 9, 12, 18, 36}
Now, we can observe that every element of A is an element of B.
Thus, A⊂ B
∴ The statement is true.