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Step * of Lemma unroll-prec-size

∀[a,i,x:Top].  (||i;x|| ~ let lbl,z = x in 1 + add-sz(pcorec-size(lbl,p.a[lbl;p]);a[lbl;i];z))
BY
{ (Intros
   THEN Unfold `prec-size` 0
   THEN (RW (AddrC [1;1;1] (LemmaC `unroll-pcorec-size`)) 0 THENA Auto)
   THEN Reduce 0
   THEN Auto) }

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Latex:

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


By

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Latex:
(Intros
  THEN  Unfold  `prec-size`  0
  THEN  (RW  (AddrC  [1;1;1]  (LemmaC  `unroll-pcorec-size`))  0  THENA  Auto)
  THEN  Reduce  0
  THEN  Auto)

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