Prove that L = {ww | w ∈ {0, 1}∗}...
Assume that L is regular. Let p be the pumping length guaranteed by the Pumping Lemma. Take w =0p10p1 ....
FLAT
FLAT
Regular expression for string starts and ends with same character
1. 0(0+1)*0 This regular expression matches any string that starts and ends with 0. Breakdown: The first 0 ensures the...