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@ -984,6 +984,20 @@ Example that looks up the value of key `2` in an alist.
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### cossa
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The `cossa` function looks up a key in an alist given a value.
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The form of an `assoc` expression is `(assoc alist-expr key-expr)`
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Example that looks up the first key with value `donkey` in an alist.
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```
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# (cossa (list '(1 . horse) '(2 . donkey) '(3 . shark)) 'donkey)
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> 2
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```
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---
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### setassoc
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### setassoc
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The `setassoc` function destructively updates a key-value mapping in an
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The `setassoc` function destructively updates a key-value mapping in an
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