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Step * of Lemma ex-sqle_wf

∀[e:Atom2]. ∀[t,t':Base].  (ex-sqle(e;t;t') ∈ ℙ)
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[e:Atom2].  \mforall{}[t,t':Base].    (ex-sqle(e;t;t')  \mmember{}  \mBbbP{})


By

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Latex:
ProveWfLemma

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