Created
May 17, 2009 03:13
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| <?php | |
| function Y($F) { | |
| return current(array(function($f) { | |
| return $f($f); | |
| }))->__invoke(function($f) use ($F) { | |
| return $F(function($x) use ($f) { | |
| return $f($f)->__invoke($x); | |
| }); | |
| }); | |
| } | |
| ?> |
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