First-class functions/Use numbers analogously: Difference between revisions

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(→‎{{header|Ruby}}: Sync with First-class functions#Ruby. Both examples now use Proc#[]; this one had used Proc#call.)
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=={{header|Factor}}==
=={{header|Factor}}==
{{incorrect|Factor|Compare and contrast the resultant program with the corresponding entry in First-class functions.}}
<lang factor>
<lang factor>
USING: arrays fry kernel math prettyprint sequences ;
USING: arrays fry kernel math prettyprint sequences ;