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प्रश्न
State, if the following pair of a set is equivalent or not:
P = {5, 6, 7, 8} and M = {x : x ∈ W and x < 4}
उत्तर
P = {5,6,7,8}
n (P) = 4
M = {x : x ∈ W and x ≤ 4}
M = {0, 1, 2, 3, 4}
n (M) = 5
Now Cardinal number of set P = 4 and
Cardinal number of set M = 5
These sets are not equivalent.
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