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#### 1.4.1 Notational Conventions ¶

The following notational conventions are used throughout this document.

- Font Key
- Modified BNF Syntax
- Splicing in Modified BNF Syntax
- Indirection in Modified BNF Syntax
- Additional Uses for Indirect Definitions in Modified BNF Syntax
- Special Symbols
- Objects with Multiple Notations
- Case in Symbols
- Numbers
- Use of the Dot Character
- NIL
- Designators
- Nonsense Words