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Step * of Lemma pi-simple-subst_wf

∀[t,x:Name]. ∀[P:pi_term()].  (pi-simple-subst(t;x;P) ∈ pi_term())
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[t,x:Name].  \mforall{}[P:pi\_term()].    (pi-simple-subst(t;x;P)  \mmember{}  pi\_term())


By

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Latex:
ProveWfLemma

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