Step
*
1
1
1
1
1
of Lemma
interior-angles-unique
.....aux.....
1. e : EuclideanPlane
2. a : Point
3. b : Point
4. c : Point
5. d : Point
6. b' : Point
7. c' : Point
8. p : Point
9. a # bc
10. out(b dc)
11. out(a bb')
12. out(a cc')
13. B(b'pc')
14. p # c'
15. bad < bac
16. bap ≅a bad
17. a # p
18. b # p
19. b' # p
20. b # ap
21. p leftof ab
⊢ d leftof ab
BY
{ ((Assert p leftof ab' BY
(InstLemma `geo-left-out` [⌜e⌝;⌜b⌝;⌜a⌝;⌜b'⌝;⌜p⌝]⋅ THEN EAuto 1))
THEN (InstLemma `left-convex` [⌜e⌝;⌜a⌝;⌜b'⌝;⌜p⌝;⌜c'⌝]⋅ THENA Auto)
THEN (InstLemma `geo-left-out-2` [⌜e⌝;⌜b'⌝;⌜a⌝;⌜c'⌝;⌜c⌝]⋅ THENA EAuto 1)
THEN (InstLemma `geo-left-out` [⌜e⌝;⌜b'⌝;⌜a⌝;⌜b⌝;⌜c⌝]⋅ THENA EAuto 1)
THEN InstLemma `geo-left-out-3` [⌜e⌝;⌜b⌝;⌜a⌝;⌜c⌝;⌜d⌝]⋅
THEN EAuto 1) }
Latex:
Latex:
.....aux.....
1. e : EuclideanPlane
2. a : Point
3. b : Point
4. c : Point
5. d : Point
6. b' : Point
7. c' : Point
8. p : Point
9. a \# bc
10. out(b dc)
11. out(a bb')
12. out(a cc')
13. B(b'pc')
14. p \# c'
15. bad < bac
16. bap \mcong{}\msuba{} bad
17. a \# p
18. b \# p
19. b' \# p
20. b \# ap
21. p leftof ab
\mvdash{} d leftof ab
By
Latex:
((Assert p leftof ab' BY
(InstLemma `geo-left-out` [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b'\mkleeneclose{};\mkleeneopen{}p\mkleeneclose{}]\mcdot{} THEN EAuto 1))
THEN (InstLemma `left-convex` [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b'\mkleeneclose{};\mkleeneopen{}p\mkleeneclose{};\mkleeneopen{}c'\mkleeneclose{}]\mcdot{} THENA Auto)
THEN (InstLemma `geo-left-out-2` [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}b'\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}c'\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{}]\mcdot{} THENA EAuto 1)
THEN (InstLemma `geo-left-out` [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}b'\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{}]\mcdot{} THENA EAuto 1)
THEN InstLemma `geo-left-out-3` [\mkleeneopen{}e\mkleeneclose{};\mkleeneopen{}b\mkleeneclose{};\mkleeneopen{}a\mkleeneclose{};\mkleeneopen{}c\mkleeneclose{};\mkleeneopen{}d\mkleeneclose{}]\mcdot{}
THEN EAuto 1)
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