Step
*
1
1
2
2
1
of Lemma
eu-cong-angle-symm
1. e : EuclideanPlane@i'
2. a : Point@i
3. b : Point@i
4. c : Point@i
5. ¬(a = b ∈ Point)
6. ¬(c = b ∈ Point)
⊢ ¬(c = b ∈ Point)
BY
{ Auto }
Latex:
Latex:
1. e : EuclideanPlane@i'
2. a : Point@i
3. b : Point@i
4. c : Point@i
5. \mneg{}(a = b)
6. \mneg{}(c = b)
\mvdash{} \mneg{}(c = b)
By
Latex:
Auto
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