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Step * of Lemma neg_assert_of_eq_int

∀[x,y:ℤ].  uiff(¬↑(x =z y);x ≠ y)
BY
{ (UnivCD THENW Auto) }

1
1. x : ℤ
2. y : ℤ
⊢ uiff(¬↑(x =z y);x ≠ y)

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Latex:

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Latex:
\mforall{}[x,y:\mBbbZ{}].    uiff(\mneg{}\muparrow{}(x  =\msubz{}  y);x  \mneq{}  y)


By

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Latex:
(UnivCD  THENW  Auto)

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