PDA for L = {aⁿb²ⁿ | n ≥ 1} | Twice as Many b’s as a’s

Learn how to construct a Pushdown Automaton (PDA) for L = { aⁿb²ⁿ | n ≥ 1 }, where all a’s come first, followed by twice as many b’s. Valid strings include abb, aabbbb, and aaabbbbbb. This video explains the transition logic, stack operations, and state diagram step by step. Push two stack symbols for each a, then pop one symbol for each b to verify the required count. #PushdownAutomata #PDA #TheoryOfComputation #AutomataTheory #FLA