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Step * of Lemma flip-union_wf

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∀[X:Type]. ∀[x:X + X].  (flip-union(x) ∈ X + X)
BY
{ ProveWfLemma }

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Latex:

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Latex:
No  Annotations
\mforall{}[X:Type].  \mforall{}[x:X  +  X].    (flip-union(x)  \mmember{}  X  +  X)


By

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Latex:
ProveWfLemma

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