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Step * of Lemma mul_assoc_fps

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∀[X:Type]
  ∀[eq:EqDecider(X)]. ∀[r:CRng]. ∀[a,b,c:PowerSeries(X;r)].  ((a*(b*c)) = ((a*b)*c) ∈ PowerSeries(X;r)) 
  supposing valueall-type(X)
BY
{ (RepeatFor 3 ((D 0 THENA Auto)) THEN (ProveSpecializedLemmaWReduce rng_times_assoc) 1 [⌜parm{i}⌝;⌜fps-rng(r)⌝]⋅) }

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Latex:

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Latex:
No  Annotations
\mforall{}[X:Type]
    \mforall{}[eq:EqDecider(X)].  \mforall{}[r:CRng].  \mforall{}[a,b,c:PowerSeries(X;r)].    ((a*(b*c))  =  ((a*b)*c)) 
    supposing  valueall-type(X)


By

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Latex:
(RepeatFor  3  ((D  0  THENA  Auto))
  THEN  (ProveSpecializedLemmaWReduce  rng\_times\_assoc)  1  [\mkleeneopen{}parm\{i\}\mkleeneclose{};\mkleeneopen{}fps-rng(r)\mkleeneclose{}]\mcdot{}
  )

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