Step * 3 of Lemma eu-colinear-cons


1. EuclideanPlane
2. Point List
3. Point
4. (∀A∈L.(∀B∈L.(∀C∈L.(¬(A B ∈ Point))  Colinear(A;B;C))))
5. (∀B∈L.(∀C∈L.(¬(A B ∈ Point))  Colinear(A;B;C)))
⊢ (∀B∈[A L].(∀C∈[A L].(¬(A B ∈ Point))  Colinear(A;B;C)))
BY
(RWO "l_all_cons" THEN Auto) }

1
1. EuclideanPlane
2. Point List
3. Point
4. (∀A∈L.(∀B∈L.(∀C∈L.(¬(A B ∈ Point))  Colinear(A;B;C))))
5. (∀B∈L.(∀C∈L.(¬(A B ∈ Point))  Colinear(A;B;C)))
⊢ (∀C∈[A L].(¬(A A ∈ Point))  Colinear(A;A;C))

2
1. EuclideanPlane
2. Point List
3. Point
4. (∀A∈L.(∀B∈L.(∀C∈L.(¬(A B ∈ Point))  Colinear(A;B;C))))
5. (∀B∈L.(∀C∈L.(¬(A B ∈ Point))  Colinear(A;B;C)))
6. (∀C∈[A L].(¬(A A ∈ Point))  Colinear(A;A;C))
⊢ (∀B∈L.(∀C∈[A L].(¬(A B ∈ Point))  Colinear(A;B;C)))


Latex:


Latex:

1.  e  :  EuclideanPlane
2.  L  :  Point  List
3.  A  :  Point
4.  (\mforall{}A\mmember{}L.(\mforall{}B\mmember{}L.(\mforall{}C\mmember{}L.(\mneg{}(A  =  B))  {}\mRightarrow{}  Colinear(A;B;C))))
5.  (\mforall{}B\mmember{}L.(\mforall{}C\mmember{}L.(\mneg{}(A  =  B))  {}\mRightarrow{}  Colinear(A;B;C)))
\mvdash{}  (\mforall{}B\mmember{}[A  /  L].(\mforall{}C\mmember{}[A  /  L].(\mneg{}(A  =  B))  {}\mRightarrow{}  Colinear(A;B;C)))


By


Latex:
(RWO  "l\_all\_cons"  0  THEN  Auto)




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