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Step * of Lemma qavg-eq-iff-6

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∀[a,b,c:ℚ].  uiff(qavg(a;b) = qavg(c;a) ∈ ℚ;b = c ∈ ℚ)
BY
{ (Unfold `qavg` 0 THEN Auto) }

1
1. a : ℚ
2. b : ℚ
3. c : ℚ
4. (a + b/2) = (c + a/2) ∈ ℚ
⊢ b = c ∈ ℚ

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Latex:

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Latex:
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\mforall{}[a,b,c:\mBbbQ{}].    uiff(qavg(a;b)  =  qavg(c;a);b  =  c)


By

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Latex:
(Unfold  `qavg`  0  THEN  Auto)

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