Step
*
of Lemma
dset_wf
DSet ∈ 𝕌'
BY
{ Unfold `dset` 0 THEN Auto⋅ }
Latex:
Latex:
DSet  \mmember{}  \mBbbU{}'
By
Latex:
Unfold  `dset`  0  THEN  Auto\mcdot{}
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