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Step * 1 1 of Lemma div-cancel-1


1. a : ℤ
2. b : ℤ-o
⊢ 0 < |b|
BY
{ (BLemma `absval-positive` THEN Auto) }

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Latex:

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Latex:

1.  a  :  \mBbbZ{}
2.  b  :  \mBbbZ{}\msupminus{}\msupzero{}
\mvdash{}  0  <  |b|


By

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Latex:
(BLemma  `absval-positive`  THEN  Auto)

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