Find the cardinal number of the set P={x:x is an integers, x∈z and 2
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In common usage, a cardinal number is a number used in counting (a counting number), such as 1, 2, 3, .... In formal set theory, a cardinal number (also called "the cardinality") is a type of number defined in such a way that any method of counting sets using it gives the same result. (
The number of distinct elements in a finite set is called its cardinal number. ... It is denoted as n(A) and read as 'the number of elements of the set'. For example: (i) Set A = {2, 4, 5, 9, 15} has 5 elements.
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