Step * 1 1 of Lemma geo-zero-point-sep-iff-sep


1. BasicGeometry
2. Point
3. Point
4. X ≠ |ab|
5. X ≠ |ab|  X < |ab| ∨ |ab| < X
6. X < |ab|
⊢ a ≠ b
BY
(InstLemma `geo-lt-sep` [⌜e⌝;⌜X⌝;⌜X⌝;⌜a⌝;⌜b⌝]⋅ THEN Auto) }


Latex:


Latex:

1.  e  :  BasicGeometry
2.  a  :  Point
3.  b  :  Point
4.  X  \mneq{}  |ab|
5.  X  \mneq{}  |ab|  \mLeftarrow{}{}  X  <  |ab|  \mvee{}  |ab|  <  X
6.  X  <  |ab|
\mvdash{}  a  \mneq{}  b


By


Latex:
(InstLemma  `geo-lt-sep`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}X\mkleeneclose{};\mkleeneopen{}X\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{}]\mcdot{}  THEN  Auto)




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