Hi,
I have to prove:
(a^i) (b^j) (a^(i.j) ) | i, j > =0; non regular using pumpimg Lemma. I have to suppose a string.
Let w = (a^m) . (b^m) . (a^(m.m))
I have to find xy in this string such that |xy| >= m
(a^m) = |xy|
(b^m) = |xy|
(a^(m.m)) = |xy| + |xy|
Now xyz = (a^m) ...Problem?
What would be 'z' here? Some body please guide me.
Zulfi.
I have to prove:
(a^i) (b^j) (a^(i.j) ) | i, j > =0; non regular using pumpimg Lemma. I have to suppose a string.
Let w = (a^m) . (b^m) . (a^(m.m))
I have to find xy in this string such that |xy| >= m
(a^m) = |xy|
(b^m) = |xy|
(a^(m.m)) = |xy| + |xy|
Now xyz = (a^m) ...Problem?
What would be 'z' here? Some body please guide me.
Zulfi.