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Step * 2 2 1 1 1 of Lemma fl-meet-0-1

.....wf..... 
1. T : Type
2. eq : EqDecider(T)
⊢ deq-fset(deq-fset(union-deq(T;T;eq;eq))) ∈ EqDecider(Point(face-lattice(T;eq)))
BY
{ (Fold `fl-deq` 0 THEN Auto) }

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Latex:

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Latex:
.....wf..... 
1.  T  :  Type
2.  eq  :  EqDecider(T)
\mvdash{}  deq-fset(deq-fset(union-deq(T;T;eq;eq)))  \mmember{}  EqDecider(Point(face-lattice(T;eq)))


By

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Latex:
(Fold  `fl-deq`  0  THEN  Auto)

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