unprime(apply_alist(as;x;x)) = x
By:
Using [`d',x]
(FwdThru
Thm*as:(LabelT) List, d:T, x:Label. (x 1of(unzip(as))) ( < x,apply_alist(as;x;d) > as)
[-1])
THEN
Unfold `l_member` -1
THEN
ExRepD
THEN
ApFunToHypEquands `z' 1of(z) Label -1
THEN
Reduce -1
THEN
ApFunToHypEquands `z' 2of(z) Term -2
THEN
Reduce -1
Generated subgoal: