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CONDITIONALS IN FUNCTIONS

( defun small ( v )

( if ( and

( > v -10 )
( < v 10 ) )

’small ’large ) )

( defun signum ( X )

( cond

( ( plusp X ) 1 )

( ( minusp X ) -1 )

( ( zerop X ) 0 ) ) )

1.23

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