confused:

[im indicating a subscript by parenthesis... as in a sub 1 = a(1) not multiplying]

By PMI, prove that this statement is true:

"If p is a prime number and p | a(1)*a(2)...a(n), where a(i) is an integer for i=1,2,3...n then p | a(i) for some integer i.

(im especially confused at what the make my proposition P(k) and where to substitute the k for PMI.)

thank you so much