Step * 1 of Lemma lt-angle-irrefl


1. EuclideanPlane
2. Point
3. Point
4. Point
5. Point
6. Point
7. Point
8. abc < xyz
9. xyz < abc
10. bc
11. yz
⊢ False
BY
((InstLemma `geo-lt-angle-trans` [⌜e⌝;⌜a⌝;⌜b⌝;⌜c⌝;⌜x⌝;⌜y⌝;⌜z⌝;⌜a⌝;⌜b⌝;⌜c⌝]⋅ THENA Auto)
   THEN InstLemma `lt-angle-not-cong` [⌜e⌝]⋅
   THEN Auto) }


Latex:


Latex:

1.  e  :  EuclideanPlane
2.  a  :  Point
3.  b  :  Point
4.  c  :  Point
5.  x  :  Point
6.  y  :  Point
7.  z  :  Point
8.  abc  <  xyz
9.  xyz  <  abc
10.  a  \#  bc
11.  x  \#  yz
\mvdash{}  False


By


Latex:
((InstLemma  `geo-lt-angle-trans`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}x\mkleeneclose{};\mkleeneopen{}y\mkleeneclose{};\mkleeneopen{}z\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{}]\mcdot{}  THENA  Auto)
  THEN  InstLemma  `lt-angle-not-cong`  [\mkleeneopen{}e\mkleeneclose{}]\mcdot{}
  THEN  Auto)




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