Step * of Lemma geo-triangle-colinear3

e:HeytingGeometry. ∀a,b,c,x,y,z:Point.
  (a bc  x ≠  Colinear(a;b;x)  y ≠  Colinear(b;c;y)  z ≠  Colinear(c;x;z)  yz)
BY
(Auto THEN (FLemma `geo-triangle-colinear2` [-5;-3] THENA Auto)) }

1
1. HeytingGeometry
2. Point
3. Point
4. Point
5. Point
6. Point
7. Point
8. bc
9. x ≠ b
10. Colinear(a;b;x)
11. y ≠ c
12. Colinear(b;c;y)
13. z ≠ x
14. Colinear(c;x;z)
15. yc
⊢ yz


Latex:


Latex:
\mforall{}e:HeytingGeometry.  \mforall{}a,b,c,x,y,z:Point.
    (a  \#  bc
    {}\mRightarrow{}  x  \mneq{}  b
    {}\mRightarrow{}  Colinear(a;b;x)
    {}\mRightarrow{}  y  \mneq{}  c
    {}\mRightarrow{}  Colinear(b;c;y)
    {}\mRightarrow{}  z  \mneq{}  x
    {}\mRightarrow{}  Colinear(c;x;z)
    {}\mRightarrow{}  x  \#  yz)


By


Latex:
(Auto  THEN  (FLemma  `geo-triangle-colinear2`  [-5;-3]  THENA  Auto))




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