How to Design Programs Languages

1`` | Beginning Student
2`` | Beginning Student with List Abbreviations
3`` | Intermediate Student
4`` | Intermediate Student with Lambda
5`` | Advanced Student
| Index

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let

Version: 4.0.2
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#### 5.9`` let

(let ([id expr] ...) expr)
(let id ([id expr] ...) expr)

The first form of let is the same as Intermediate’s let.

The second form is equivalent to a recur form.

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