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Step * of Lemma mFOL-sequent-freevars_wf

∀[s:mFOL-sequent()]. (mFOL-sequent-freevars(s) ∈ ℤ List)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[s:mFOL-sequent()].  (mFOL-sequent-freevars(s)  \mmember{}  \mBbbZ{}  List)


By

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Latex:
ProveWfLemma

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