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Step * of Lemma seq-len_wf

∀[T:Type]. ∀[s:sequence(T)].  (||s|| ∈ ℕ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[T:Type].  \mforall{}[s:sequence(T)].    (||s||  \mmember{}  \mBbbN{})


By

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Latex:
ProveWfLemma

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