Step
*
1
1
of Lemma
geo-line-eq_transitivity
1. g : EuclideanPlane
2. l : Line
3. m : Line
4. n : Line
5. l ≡ m
6. m ≡ n
7. p : Point
8. Colinear(p;fst(l);fst(snd(l)))
9. p # fst(n)fst(snd(n))
10. Colinear(fst(l);fst(snd(l));fst(m))
11. Colinear(fst(l);fst(snd(l));fst(snd(m)))
12. Colinear(fst(m);fst(snd(m));fst(n))
13. Colinear(fst(m);fst(snd(m));fst(snd(n)))
⊢ False
BY
{ (((D 2 THEN D 3) THEN (D 5 THEN D 6) THEN D 8 THEN D 9) THEN All Reduce⋅) }
1
1. g : EuclideanPlane
2. x : Point
3. y : Point
4. l2 : x ≠ y
5. x1 : Point
6. y1 : Point
7. m2 : x1 ≠ y1
8. x2 : Point
9. y2 : Point
10. n2 : x2 ≠ y2
11. <x, y, l2> ≡ <x1, y1, m2>
12. <x1, y1, m2> ≡ <x2, y2, n2>
13. p : Point
14. Colinear(p;x;y)
15. p # x2y2
16. Colinear(x;y;x1)
17. Colinear(x;y;y1)
18. Colinear(x1;y1;x2)
19. Colinear(x1;y1;y2)
⊢ False
Latex:
Latex:
1. g : EuclideanPlane
2. l : Line
3. m : Line
4. n : Line
5. l \mequiv{} m
6. m \mequiv{} n
7. p : Point
8. Colinear(p;fst(l);fst(snd(l)))
9. p \# fst(n)fst(snd(n))
10. Colinear(fst(l);fst(snd(l));fst(m))
11. Colinear(fst(l);fst(snd(l));fst(snd(m)))
12. Colinear(fst(m);fst(snd(m));fst(n))
13. Colinear(fst(m);fst(snd(m));fst(snd(n)))
\mvdash{} False
By
Latex:
(((D 2 THEN D 3) THEN (D 5 THEN D 6) THEN D 8 THEN D 9) THEN All Reduce\mcdot{})
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