It may sound stupid but I am stuck.
In the above min DFA, for q1 and q2- transitions on i/p 0/1 are going to final/non-final states respectively. Also for q3 and q4- transitions on i/p 0/1 are going to non-final/final states respectively. Then why cant we merge them as per definition of equivalence classes, making min DFA of 3 states(which turned out to be wrong).
Please explain, Whether my understanding of equivalence classes is wrong or what?