Step * 1 1 1 1 of Lemma geo-colinear-implies


1. BasicGeometry-
2. BasicGeometryAxioms(e)
3. Point
4. Point
5. Point
6. ¬bc
7. ¬(((¬ab>ac) ∧ bc>ac)) ∧ bc))
8. ∀a,b,c,d:Point.  (ab>cd  cd>ab))
9. ab>ac
10. bc>ba
11. ca>cb
⊢ False
BY
((InstLemma  `geo-gt-prim-transitivity` [⌜e⌝;⌜a⌝;⌜b⌝;⌜a⌝;⌜c⌝;⌜c⌝;⌜b⌝]⋅ THEN Auto)
   THENA (InstLemma  `geo-gt-prim-symmetry` [⌜e⌝;⌜c⌝;⌜a⌝;⌜c⌝;⌜b⌝]⋅ THEN Auto)
   }

1
1. BasicGeometry-
2. BasicGeometryAxioms(e)
3. Point
4. Point
5. Point
6. ¬bc
7. ¬(((¬ab>ac) ∧ bc>ac)) ∧ bc))
8. ∀a,b,c,d:Point.  (ab>cd  cd>ab))
9. ab>ac
10. bc>ba
11. ca>cb
12. ab>cb
⊢ False


Latex:


Latex:

1.  e  :  BasicGeometry-
2.  BasicGeometryAxioms(e)
3.  a  :  Point
4.  b  :  Point
5.  c  :  Point
6.  \mneg{}a  \#  bc
7.  \mneg{}(((\mneg{}ab>ac)  \mwedge{}  (\mneg{}bc>ac))  \mwedge{}  (\mneg{}a  \#  bc))
8.  \mforall{}a,b,c,d:Point.    (ab>cd  {}\mRightarrow{}  (\mneg{}cd>ab))
9.  ab>ac
10.  bc>ba
11.  ca>cb
\mvdash{}  False


By


Latex:
((InstLemma    `geo-gt-prim-transitivity`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{}]\mcdot{}  THEN  Auto)
  THENA  (InstLemma    `geo-gt-prim-symmetry`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{}]\mcdot{}  THEN  Auto)
  )




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