Step * of Lemma Euclid-Prop19-lemma2_1

No Annotations
e:EuclideanPlane. ∀a,b,c,d,f:Point.  (a bc  abd ≅a cbd  a=d=c  a-f-c  cbf < abf  abd < abf)
BY
((Auto THEN (InstLemma `geo-lt-angle-triangle-point-exists` [⌜e⌝;⌜c⌝;⌜b⌝;⌜f⌝;⌜a⌝;⌜b⌝;⌜f⌝]⋅ THENA Auto))
   THEN ExRepD
   THEN (InstLemma `geo-sep-or` [⌜e⌝;⌜p⌝;⌜f⌝;⌜d⌝]⋅ THENA Auto)
   THEN -1) }

1
1. EuclideanPlane
2. Point
3. Point
4. Point
5. Point
6. Point
7. bc
8. abd ≅a cbd
9. a=d=c
10. a-f-c
11. cbf < abf
12. Point
13. a-p-f
14. abp ≅a cbf
15. d
⊢ abd < abf

2
1. EuclideanPlane
2. Point
3. Point
4. Point
5. Point
6. Point
7. bc
8. abd ≅a cbd
9. a=d=c
10. a-f-c
11. cbf < abf
12. Point
13. a-p-f
14. abp ≅a cbf
15. d
⊢ abd < abf


Latex:


Latex:
No  Annotations
\mforall{}e:EuclideanPlane.  \mforall{}a,b,c,d,f:Point.
    (a  \#  bc  {}\mRightarrow{}  abd  \mcong{}\msuba{}  cbd  {}\mRightarrow{}  a=d=c  {}\mRightarrow{}  a-f-c  {}\mRightarrow{}  cbf  <  abf  {}\mRightarrow{}  abd  <  abf)


By


Latex:
((Auto
    THEN  (InstLemma  `geo-lt-angle-triangle-point-exists`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}f\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}f\mkleeneclose{}]\mcdot{}  THENA  Auto)
    )
  THEN  ExRepD
  THEN  (InstLemma  `geo-sep-or`  [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}p\mkleeneclose{};\mkleeneopen{}f\mkleeneclose{};\mkleeneopen{}d\mkleeneclose{}]\mcdot{}  THENA  Auto)
  THEN  D  -1)




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