Step * of Lemma int-prod_wf_nat_plus

[n:ℕ]. ∀[f:ℕn ⟶ ℕ+].  (f[x] x < n) ∈ ℕ+)
BY
ProveWfLemma }


Latex:


Latex:
\mforall{}[n:\mBbbN{}].  \mforall{}[f:\mBbbN{}n  {}\mrightarrow{}  \mBbbN{}\msupplus{}].    (\mPi{}(f[x]  |  x  <  n)  \mmember{}  \mBbbN{}\msupplus{})


By


Latex:
ProveWfLemma




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