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Step * of Lemma mapfilter-as-fast-mapfilter

∀[L,p,f:Top].  (mapfilter(f;p;L) ~ fast-mapfilter(p;f;L))
BY
{ (Auto THEN (RWO "mapfilter-as-reduce2" 0 THENA Auto) THEN RepUR ``fast-mapfilter so_apply`` 0 THEN Auto) }

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Latex:

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Latex:
\mforall{}[L,p,f:Top].    (mapfilter(f;p;L)  \msim{}  fast-mapfilter(p;f;L))


By

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Latex:
(Auto
  THEN  (RWO  "mapfilter-as-reduce2"  0  THENA  Auto)
  THEN  RepUR  ``fast-mapfilter  so\_apply``  0
  THEN  Auto)

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