Nuprl - hol_arithmetic_5 LEMMAs for sub_right

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Theorem	Name
Thm* m,n,x:. nnsub(m;n)+x = if mn then x else nnsub(m+x;n) fi	[sub_right_add]
cites the following:
Thm* all Thm* (m:hnum. all Thm* (m:hnum. (n:hnum. all Thm* (m:hnum. (n:hnum. (p:hnum. equal Thm* (m:hnum. (n:hnum. (p:hnum. (add(sub(m,n),p) Thm* (m:hnum. (n:hnum. (p:hnum. ,cond(le(m,n),p,sub(add(m,p),n))))))	[hsub_right_add]

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html