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Step * of Lemma neg_assert_of_eq_atom

∀[x,y:Atom].  uiff(¬↑x =a y;x ≠ y ∈ Atom )
BY
{ ((UnivCD THENM RWH (LemmaC `assert_of_eq_atom`) 0) THENA Auto) }

1
1. x : Atom
2. y : Atom
⊢ uiff(¬(x = y ∈ Atom);x ≠ y ∈ Atom )

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Latex:

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


By

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Latex:
((UnivCD  THENM  RWH  (LemmaC  `assert\_of\_eq\_atom`)  0)  THENA  Auto)

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