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Step * of Lemma Accum-class-single-val0

∀[Info,A,B:Type]. ∀[es:EO+(Info)]. ∀[f:A ─→ B ─→ B]. ∀[X:EClass(A)]. ∀[init:Id ─→ bag(B)]. ∀[e:E]. ∀[v1,v2:B].
  (v1 = v2 ∈ B) supposing 
     (v1 ∈ Accum-class(f;init;X)(e) and 
     v2 ∈ Accum-class(f;init;X)(e) and 
     single-valued-bag(init loc(e);B) and 
     single-valued-classrel(es;X;A))
BY
{ (InstLemma `rec-combined-class-opt-1-single-val0` []
   THEN RepeatFor 10 (ParallelLast)
   THEN Unfold `Accum-class` 0
   THEN Auto) }

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Latex:

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Latex:
\mforall{}[Info,A,B:Type].  \mforall{}[es:EO+(Info)].  \mforall{}[f:A  {}\mrightarrow{}  B  {}\mrightarrow{}  B].  \mforall{}[X:EClass(A)].  \mforall{}[init:Id  {}\mrightarrow{}  bag(B)].  \mforall{}[e:E].
\mforall{}[v1,v2:B].
    (v1  =  v2)  supposing 
          (v1  \mmember{}  Accum-class(f;init;X)(e)  and 
          v2  \mmember{}  Accum-class(f;init;X)(e)  and 
          single-valued-bag(init  loc(e);B)  and 
          single-valued-classrel(es;X;A))


By

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Latex:
(InstLemma  `rec-combined-class-opt-1-single-val0`  []
  THEN  RepeatFor  10  (ParallelLast)
  THEN  Unfold  `Accum-class`  0
  THEN  Auto)

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