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Step * of Lemma FormSafe2_wf

∀[C:Type]. ∀[f:Form(C)].  (FormSafe2(f) ∈ (Atom List) ⟶ 𝔹)
BY
{ (Intros
   THEN Unfold `FormSafe2` 0
   THEN (MemCD THEN Try (QuickAuto))
   THEN (MemCD THENA Auto)
   THEN BoolCase ⌜null(vs)⌝⋅
   THEN Auto) }

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Latex:

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Latex:
\mforall{}[C:Type].  \mforall{}[f:Form(C)].    (FormSafe2(f)  \mmember{}  (Atom  List)  {}\mrightarrow{}  \mBbbB{})


By

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Latex:
(Intros
  THEN  Unfold  `FormSafe2`  0
  THEN  (MemCD  THEN  Try  (QuickAuto))
  THEN  (MemCD  THENA  Auto)
  THEN  BoolCase  \mkleeneopen{}null(vs)\mkleeneclose{}\mcdot{}
  THEN  Auto)

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