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Step * 1 of Lemma isdM0_wf


1. I : fset(ℕ)
2. x : Point(dM(I))
⊢ isdM0(x) ∈ 𝔹
BY
{ ((RWO "dM-point" (-1) THENA Auto) THEN D -1 THEN (Unfold `isdM0` 0 THEN Fold `fset-null` 0) THEN Auto) }

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Latex:

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Latex:

1.  I  :  fset(\mBbbN{})
2.  x  :  Point(dM(I))
\mvdash{}  isdM0(x)  \mmember{}  \mBbbB{}


By

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Latex:
((RWO  "dM-point"  (-1)  THENA  Auto)
  THEN  D  -1
  THEN  (Unfold  `isdM0`  0  THEN  Fold  `fset-null`  0)
  THEN  Auto)

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