NOT( A OR B ) <==> NOT(A) AND NOT(B)
NOT( A AND B ) <==> NOT(A) OR NOT(B)

##</code><code>##

NOT( ($odometer[$wheel] < 9 || $wheel < 0) ) 
==>
NOT($odometer[$wheel] < 9 ) AND NOT ($wheel < 0) 
==> 
$odometer[$wheel] >= 9 AND $wheel >= 0