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The classes <code>t</code> and <code>null</code> are widely exploited in Lisp OO programming. |
The classes <code>t</code> and <code>null</code> are widely exploited in Lisp OO programming. |
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=={{header| |
=={{header|Component Pascal}}== |
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<lang |
<lang Oberon2> |
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MODULE ObjectNil; |
MODULE ObjectNil; |
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IMPORT StdLog; |
IMPORT StdLog; |
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