Step
*
1
of Lemma
neg_assert_of_eq_atom
1. x : Atom
2. y : Atom
⊢ uiff(¬(x = y ∈ Atom);x ≠ y ∈ Atom )
BY
{ (Unfold `nequal` 0 THEN Auto) }
Latex:
Latex:
1. x : Atom
2. y : Atom
\mvdash{} uiff(\mneg{}(x = y);x \mneq{} y \mmember{} Atom )
By
Latex:
(Unfold `nequal` 0 THEN Auto)
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