Step
*
of Lemma
l-union-list_wf
∀[T:Type]. ∀[eq:EqDecider(T)]. ∀[ll:T List List]. (l-union-list(eq;ll) ∈ T List)
BY
{ (Unfold `l-union-list` 0 THEN Auto THEN ListInd (-1) THEN Reduce 0 THEN Auto) }
Latex:
Latex:
\mforall{}[T:Type]. \mforall{}[eq:EqDecider(T)]. \mforall{}[ll:T List List]. (l-union-list(eq;ll) \mmember{} T List)
By
Latex:
(Unfold `l-union-list` 0 THEN Auto THEN ListInd (-1) THEN Reduce 0 THEN Auto)
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