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Step * of Lemma eq_int_eq_true_elim

∀[i,j:ℤ].  i = j ∈ ℤ supposing (i =z j) = tt
BY
{ Auto }

1
1. i : ℤ
2. j : ℤ
3. (i =z j) = tt
⊢ i = j ∈ ℤ

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Latex:

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Latex:
\mforall{}[i,j:\mBbbZ{}].    i  =  j  supposing  (i  =\msubz{}  j)  =  tt


By

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Latex:
Auto

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