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Step * 1 of Lemma rec-value-height_wf

.....wf..... 
1. v : co-value()
2. (co-value-height(v))↓
⊢ rec-value-height(v) ∈ partial(ℕ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
.....wf..... 
1.  v  :  co-value()
2.  (co-value-height(v))\mdownarrow{}
\mvdash{}  rec-value-height(v)  \mmember{}  partial(\mBbbN{})


By

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Latex:
ProveWfLemma

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