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Step * of Lemma oob-getright?_wf

∀[B,A:Type]. ∀[x:one_or_both(A;B)].  (oob-getright?(x) ∈ bag(B))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[B,A:Type].  \mforall{}[x:one\_or\_both(A;B)].    (oob-getright?(x)  \mmember{}  bag(B))


By

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Latex:
ProveWfLemma

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