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Step * of Lemma es-prior-class-when_wf

∀[Info,A,B:Type]. ∀[X:EClass(A)]. ∀[Y:EClass(B)]. ∀[d:A].  ((X'?d) when Y ∈ EClass(B × A))
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[Info,A,B:Type].  \mforall{}[X:EClass(A)].  \mforall{}[Y:EClass(B)].  \mforall{}[d:A].    ((X'?d)  when  Y  \mmember{}  EClass(B  \mtimes{}  A))


By

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Latex:
ProveWfLemma

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