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For all numbers n, if n is prime then n is solitary.

Write out the beginning and end of the argument if you were to prove

the statement,

(a) Directly

(b) By contrapositive

(c) By contradiction

You do not need to provide details for the proofs (since you do not

know what solitary means). However, make sure that you provide the

first few and last few lines of the proofs so that we can see that logical

structure you would follow.

Fig: 1