Explanation
W = { 0, 1, 2, 3, …}
Whole numbers starts from zero and the collection is continued infinitely. So, the set of whole numbers is known as an infinite set.
$$\textbf{Step 1: Subtract 1 from 0 to check it has a predecessor or not.}$$
$$\text{Consider the whole number predecessor 0,}$$
$$\text{We know that, whole numbers are, }0,1,2,3,4,5,........\infty $$
$$\text{Now, }$$
$$0-1=-1$$
$$\text{Clearly, -1 is not a whole number,}$$
$$\text{Smallest whole number is }=0$$
$$\text{So, 0 has no any predecessor;}$$
$$\textbf{Hence, the given statement is true.}$$
Consider the whole number predecessor 0,
We know that, whole numbers are, $$0,1,2,3,4,5,........\infty $$
Hence, the whole number $$=13$$ lie between $$12$$ and $$14$$
So, $$13$$ does not lie between $$11$$ and $$12$$;
$$13$$ is successor of $$12$$ and predecessor of $$14$$.
Hence, the given statement is False.
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