Step * of Lemma s-group_wf

s-Group ∈ 𝕌'
BY
(Unfold `s-group` THEN RecordWf' THEN Auto) }


Latex:


Latex:
s-Group  \mmember{}  \mBbbU{}'


By


Latex:
(Unfold  `s-group`  0  THEN  RecordWf'  THEN  Auto)




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