Step * 2 1 1 1 2 of Lemma geo-colinear-iff

.....aux..... 
1. BasicGeometry-
2. Point
3. Point
4. Point
5. ¬((¬B(abc)) ∧ B(bca)) ∧ B(cab)))
6. bc
7. B(abc)
⊢ Colinear(a;b;c)
BY
(InstLemma `geo-between-implies-colinear` [⌜e⌝;⌜a⌝;⌜b⌝;⌜c⌝]⋅ THEN Auto) }


Latex:


Latex:
.....aux..... 
1.  e  :  BasicGeometry-
2.  a  :  Point
3.  b  :  Point
4.  c  :  Point
5.  \mneg{}((\mneg{}B(abc))  \mwedge{}  (\mneg{}B(bca))  \mwedge{}  (\mneg{}B(cab)))
6.  a  \#  bc
7.  B(abc)
\mvdash{}  Colinear(a;b;c)


By


Latex:
(InstLemma  `geo-between-implies-colinear`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{}]\mcdot{}  THEN  Auto)




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