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Step * of Lemma unroll-pcorec-size

∀[a:Top]. (pcorec-size(lbl,p.a[lbl;p]) ~ λp,x. let lbl,z = x in 1 + add-sz(pcorec-size(lbl,p.a[lbl;p]);a[lbl;p];z))
BY
{ (Intros
   THEN Unfold `pcorec-size` 0
   THEN RW  (AddrC [1] (SweepUpC UnrollRecursionC)) 0
   THEN Reduce 0
   THEN Fold `pcorec-size` 0
   THEN Auto) }

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Latex:

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Latex:
\mforall{}[a:Top]
    (pcorec-size(lbl,p.a[lbl;p])  \msim{}  \mlambda{}p,x.  let  lbl,z  =  x 
                                                                              in  1  +  add-sz(pcorec-size(lbl,p.a[lbl;p]);a[lbl;p];z))


By

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Latex:
(Intros
  THEN  Unfold  `pcorec-size`  0
  THEN  RW    (AddrC  [1]  (SweepUpC  UnrollRecursionC))  0
  THEN  Reduce  0
  THEN  Fold  `pcorec-size`  0
  THEN  Auto)

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