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Step * 1 of Lemma bdd-diff-equiv


1. a : ℕ+ ⟶ ℤ
⊢ bdd-diff(a;a)
BY
{ ((With ⌜0⌝ (D 0)⋅ THEN Auto) THEN RWO "absval_pos" 0 THEN Auto) }

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Latex:

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Latex:

1.  a  :  \mBbbN{}\msupplus{}  {}\mrightarrow{}  \mBbbZ{}
\mvdash{}  bdd-diff(a;a)


By

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Latex:
((With  \mkleeneopen{}0\mkleeneclose{}  (D  0)\mcdot{}  THEN  Auto)  THEN  RWO  "absval\_pos"  0  THEN  Auto)

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