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Step * 1 of Lemma qdeq_wf


1. x : ℚ
2. y : ℚ
3. ↑qeq(x;y)
⊢ x = y ∈ ℚ
BY
{ (RW assert_pushdownC (-1) THEN Auto) }

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Latex:

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Latex:

1.  x  :  \mBbbQ{}
2.  y  :  \mBbbQ{}
3.  \muparrow{}qeq(x;y)
\mvdash{}  x  =  y


By

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Latex:
(RW  assert\_pushdownC  (-1)  THEN  Auto)

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