Question: Suppose that P(n) is statement, It is possible to make a total of exactly n cents using only 3-cent and 7-cent stamps. (a) Prove that

Suppose that P(n) is statement, "It is possible to make a total of exactly n cents using only 3-cent and 7-cent stamps." (a) Prove that P(12), P(13) and P(14) are all true. (b) Using strong induction, prove that P(n) is true for all n > 12
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