Step
*
1
of Lemma
not-ip-triangle-iff
1. rv : InnerProductSpace
2. a : Point
3. b : Point
4. c : Point
5. ¬Δ(a;b;c)
⊢ ¬((¬a_b_c) ∧ (¬b_c_a) ∧ (¬c_a_b))
BY
{ (BLemma `not-ip-triangle-implies` THEN Auto) }
Latex:
Latex:
1. rv : InnerProductSpace
2. a : Point
3. b : Point
4. c : Point
5. \mneg{}\mDelta{}(a;b;c)
\mvdash{} \mneg{}((\mneg{}a\_b\_c) \mwedge{} (\mneg{}b\_c\_a) \mwedge{} (\mneg{}c\_a\_b))
By
Latex:
(BLemma `not-ip-triangle-implies` THEN Auto)
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