Nuprl - Proof: hpre sub

IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: hpre sub

all(

m:hnum. all(

n:hnum. equal(pre(sub(m,n)),sub(pre(m),n))))

By:	HOL "hpre_sub"

Generated subgoals:

None

About:

IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html