Step * 2 of Lemma geo-ge-cases


1. BasicGeometry
2. Point
3. Point
4. Point
5. Point
6. |cd| < |ab|
⊢ ¬¬((ab > cd ∨ cd > ab) ∨ ab ≅ cd)
BY
(InstLemma  `geo-lt-implies-gt-strong` [⌜e⌝;⌜a⌝;⌜b⌝;⌜c⌝;⌜d⌝]⋅ THEN Auto) }


Latex:


Latex:

1.  e  :  BasicGeometry
2.  a  :  Point
3.  b  :  Point
4.  c  :  Point
5.  d  :  Point
6.  |cd|  <  |ab|
\mvdash{}  \mneg{}\mneg{}((ab  >  cd  \mvee{}  cd  >  ab)  \mvee{}  ab  \mcong{}  cd)


By


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




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