Minimization of DFA using Myhill Nerode Theorem

Minimization of DFA using Myhill Nerode Theorem - Table Filling Method

Example 3

Minimization of DFA with unreachable state using Myhill Nerode Theorem - Table Filling Method

Step 1 Draw a table for all pairs of states (P, Q) not necessarily connected

directly [All are unmarked initially]

Step 2 Consider every state pair (P, Q) in the DFA where P ∈ F and Q ∉ F or vice versa and mark them. [Here F is the set of final states]

Step 3 Repeat this step until we cannot mark anymore states:

If there is an unmarked pair (P, Q), mark it if the pair {δ(P, A), δ (Q, A)} is marked for some input alphabet.

Step 4 Combine all the unmarked pair (P, Q) and make them a single state in the reduced DFA.

Example-2Minimization of DFA Example-4 Minimization of DFA

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