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Step * 1 1 of Lemma assert_of_le_int


1. x : ℤ
2. y : ℤ
⊢ uiff(¬↑y <z x;x ≤ y)
BY
{ (RWH (LemmaC `assert_of_lt_int`) 0 THEN Auto) }

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Latex:

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Latex:

1.  x  :  \mBbbZ{}
2.  y  :  \mBbbZ{}
\mvdash{}  uiff(\mneg{}\muparrow{}y  <z  x;x  \mleq{}  y)


By

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Latex:
(RWH  (LemmaC  `assert\_of\_lt\_int`)  0  THEN  Auto)

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