Step
*
of Lemma
monus_wf
[a,b:
].
  
((a--b)
 
 
)
BY
{
 
ProveWfLemma
 
}
\mforall{}[a,b:\mBbbZ{}].    ((a--b)  \mmember{}  \mBbbN{})
By
ProveWfLemma
Home
Index