Step * 1 of Lemma geo-lt-angle-degenerate-case1


1. EuclideanPlane
2. Point
3. Point
4. Point
5. Point
6. Point
7. a ≠ b
8. x-y-z
⊢ aba ≅a xyx
BY
(InstLemma `zero-angles-congruent` [⌜e⌝;⌜a⌝;⌜b⌝;⌜a⌝;⌜x⌝;⌜y⌝;⌜x⌝]⋅ THEN EAuto 1) }


Latex:


Latex:

1.  e  :  EuclideanPlane
2.  a  :  Point
3.  b  :  Point
4.  x  :  Point
5.  y  :  Point
6.  z  :  Point
7.  a  \mneq{}  b
8.  x-y-z
\mvdash{}  aba  \mcong{}\msuba{}  xyx


By


Latex:
(InstLemma  `zero-angles-congruent`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}x\mkleeneclose{};\mkleeneopen{}y\mkleeneclose{};\mkleeneopen{}x\mkleeneclose{}]\mcdot{}  THEN  EAuto  1)




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