📖 Formal grammar §

= collection of syntax definitions in a 📕 Formal Language that define valid words or phrases

Classification §

→ 🪜 Chomsky Hierarchy

Units §

• 📣 Sentence
  • ⛓️ Clause
    • ⛓️ Phrase
      • 🈁 Word
        • 🦋 Morpheme

Types §

• 🏗 Formal generative grammar
• 👔 Chomsky normal form

How to check? §

• 🔠 Syntax level analysis

Relationships §

Two grammars are…

• Weakly equivalent: generate same strings
• Strongly equivalent: generate the same strings and structures (= parse tree)

📖 Example: §

• 🏦 Treebank