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Step * of Lemma oal_null_wf

∀s:LOSet. ∀g:AbDMon. ∀ps:|oal(s;g)|.  (null(ps) ∈ 𝔹)
BY
{ ((Unfold `oal_null` 0) THEN Auto) }

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Latex:

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Latex:
\mforall{}s:LOSet.  \mforall{}g:AbDMon.  \mforall{}ps:|oal(s;g)|.    (null(ps)  \mmember{}  \mBbbB{})


By

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Latex:
((Unfold  `oal\_null`  0)  THEN  Auto)

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