The Chomsky hierarchy provides a structured framework for understanding the complexity and generative power of different types of formal grammars and languages:
- Type 0: Unrestricted Grammars (Recursively Enumerable Languages)
- Type 1: Context-Sensitive Grammars (Context-Sensitive Languages)
- Type 2: Context-Free Grammars (Context-Free Languages)
- Type 3: Regular Grammars (Regular Languages)