Step
*
1
1
1
of Lemma
geo-lt-add1_2
1. e : BasicGeometry
2. p : {a:Point| O_X_a}
3. q : {a:Point| O_X_a}
4. r : {a:Point| O_X_a}
5. X ≠ p
6. X ≠ q
7. X ≠ r
8. a : Point
9. b : Point
10. a ≠ b
11. p' : {p:Point| O_X_p}
12. q' : {p:Point| O_X_p}
13. p' = p + |ab| ∈ Length
14. q' = q ∈ Length
15. X_p'_q'
16. a ≠ b
17. p1 : Point
18. X_r_p1
19. X ≠ r
20. r ≠ p1
21. rp1 ≅ Xp'
22. q1 : Point
23. X-r-q1
24. rq1 ≅ Xq'
25. |Xp1| = |Xr| + |rp1| ∈ Length
⊢ p1 = p + r + |ab| ∈ Length
BY
{ ((Assert |rp1| = p + |ab| ∈ Length BY
(Auto
THEN (Assert |Xp'| = p' ∈ Length BY
Auto)
THEN (Assert |rp1| = |Xp'| ∈ Length BY
Auto)
THEN RWO "-2" 27
THEN Auto))
THEN (RWO "-1" 25 THEN Auto)
THEN (Assert p1 = |Xp1| ∈ Length BY
Auto)
THEN RWO "-1" 0
THEN Auto) }
Latex:
Latex:
1. e : BasicGeometry
2. p : \{a:Point| O\_X\_a\}
3. q : \{a:Point| O\_X\_a\}
4. r : \{a:Point| O\_X\_a\}
5. X \mneq{} p
6. X \mneq{} q
7. X \mneq{} r
8. a : Point
9. b : Point
10. a \mneq{} b
11. p' : \{p:Point| O\_X\_p\}
12. q' : \{p:Point| O\_X\_p\}
13. p' = p + |ab|
14. q' = q
15. X\_p'\_q'
16. a \mneq{} b
17. p1 : Point
18. X\_r\_p1
19. X \mneq{} r
20. r \mneq{} p1
21. rp1 \mcong{} Xp'
22. q1 : Point
23. X-r-q1
24. rq1 \mcong{} Xq'
25. |Xp1| = |Xr| + |rp1|
\mvdash{} p1 = p + r + |ab|
By
Latex:
((Assert |rp1| = p + |ab| BY
(Auto
THEN (Assert |Xp'| = p' BY
Auto)
THEN (Assert |rp1| = |Xp'| BY
Auto)
THEN RWO "-2" 27
THEN Auto))
THEN (RWO "-1" 25 THEN Auto)
THEN (Assert p1 = |Xp1| BY
Auto)
THEN RWO "-1" 0
THEN Auto)
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