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6.12 Definitions and Variable Bindings
Scheme supports the definition of variables in different contexts. Variables can be defined at the top level, so that they are visible in the entire program, and variables can be defined locally to procedures and expressions. This is important for modularity and data abstraction.
| 6.12.1 Top Level Variable Definitions | Top level variable definitions. | |
| 6.12.2 Local Variable Bindings | Local variable bindings. | |
| 6.12.3 Internal definitions | ||
| 6.12.4 Querying variable bindings |
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