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Step * 1 1 of Lemma square-req-1-iff


1. x : ℝ
2. x ≠ x
3. x = -(r1)
⊢ x = r1
BY
{ (FLemma `rneq_irreflexivity` [-2] THEN Auto) }

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Latex:

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Latex:

1.  x  :  \mBbbR{}
2.  x  \mneq{}  x
3.  x  =  -(r1)
\mvdash{}  x  =  r1


By

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Latex:
(FLemma  `rneq\_irreflexivity`  [-2]  THEN  Auto)

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