B. "...and the wisdom of their wise men shall perish, and the discernment of their discerning men shall be hidden."
C. Consider a following set of triplets, defined as follows:
- (0,0,0) is in S
- For all triplets (a,b,c), if by subtracting a positive integer from any one column you can transform (a,b,c) into something in S, then (a,b,c) is not in S.
- Triplets containing negative elements are not in S.
Provide a general strategy for determining whether or not a triplet is in S.