Step
*
of Lemma
rv-congruent-iff2
No Annotations
∀n:ℕ. ∀a,b,c,d:ℝ^n. (ab=cd
⇐⇒ ¬((d(a;b) < d(c;d)) ∨ (d(c;d) < d(a;b))))
BY
{ ((UnivCD THENA Auto) THEN Unfold `rv-congruent` 0 THEN Auto) }
1
1. n : ℕ
2. a : ℝ^n
3. b : ℝ^n
4. c : ℝ^n
5. d : ℝ^n
6. d(a;b) = d(c;d)
⊢ ¬((d(a;b) < d(c;d)) ∨ (d(c;d) < d(a;b)))
2
1. n : ℕ
2. a : ℝ^n
3. b : ℝ^n
4. c : ℝ^n
5. d : ℝ^n
6. ¬((d(a;b) < d(c;d)) ∨ (d(c;d) < d(a;b)))
⊢ d(a;b) = d(c;d)
Latex:
Latex:
No Annotations
\mforall{}n:\mBbbN{}. \mforall{}a,b,c,d:\mBbbR{}\^{}n. (ab=cd \mLeftarrow{}{}\mRightarrow{} \mneg{}((d(a;b) < d(c;d)) \mvee{} (d(c;d) < d(a;b))))
By
Latex:
((UnivCD THENA Auto) THEN Unfold `rv-congruent` 0 THEN Auto)
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