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Step * of Lemma assert-deq-f-subset

∀[T:Type]. ∀[eq:EqDecider(T)]. ∀[x,y:fset(T)].  uiff(↑(deq-f-subset(eq) x y);x ⊆ y)
BY
{ ((UnivCD THENA Auto) THEN (GenConclTerm ⌜deq-f-subset(eq)⌝⋅ THENA Auto) THEN D -2 THEN Unhide THEN Auto) }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[eq:EqDecider(T)].  \mforall{}[x,y:fset(T)].    uiff(\muparrow{}(deq-f-subset(eq)  x  y);x  \msubseteq{}  y)


By

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Latex:
((UnivCD  THENA  Auto)
  THEN  (GenConclTerm  \mkleeneopen{}deq-f-subset(eq)\mkleeneclose{}\mcdot{}  THENA  Auto)
  THEN  D  -2
  THEN  Unhide
  THEN  Auto)

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