Step * of Lemma bag-filter-map

[f,p,as:Top].  ([x∈bag-map(f;as)|p[x]] bag-map(f;[x∈as|p[f x]]))
BY
(Auto THEN Unfolds ``bag-filter bag-map`` THEN RWO "filter-map" THEN Auto) }

1
1. Top
2. Top
3. as Top
⊢ x.p[x]) ~ λx.p[f x]


Latex:


Latex:
\mforall{}[f,p,as:Top].    ([x\mmember{}bag-map(f;as)|p[x]]  \msim{}  bag-map(f;[x\mmember{}as|p[f  x]]))


By


Latex:
(Auto  THEN  Unfolds  ``bag-filter  bag-map``  0  THEN  RWO  "filter-map"  0  THEN  Auto)




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