Hi,
I have following question which I think involves concatenation property.


We can use v = xx
Now L1 = u .( xx)

L1 is regular because L1 is closed under concatenation.

Somebody please guide me.

Zulfi.

 

Have you already proven that regular languages are closed under concatenation?

 

Have you already proven that regular languages are closed under concatenation?

Hi,
I think we can say that
L1(u.xx) = L1(u) . L1 (xx) by definition
= L1(u) . L1(x). L1(x)

We can also show it by construction.

Zulfi.