I assume that P(n) is true
p(n): j - i < 2^n => A(i,j) n
for all Z i , j , n with
1 i j N
and n 0
basic step: P(0)
j - i < 1 => A(i,j) 0
now I need to prove P(n+1)
P(n+1) : j - i < 2^(n+1) => A(i,j) n+1
meaning I have to show that A(i,j) n+1
how?
http://www.mathhelpforum.com/math-he...tion-more.html
forgot to link this one.