Step
*
of Lemma
names_wf
∀[I:fset(ℕ)]. (names(I) ∈ Type)
BY
{ ProveWfLemma }
Latex:
Latex:
\mforall{}[I:fset(\mBbbN{})].  (names(I)  \mmember{}  Type)
By
Latex:
ProveWfLemma
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