Step | Hyp | Ref
| Expression |
1 | | animorr 978 |
. . 3
β’ ((π β§ π = π) β (π β (ππΏπ) β¨ π = π)) |
2 | | tglngval.p |
. . . . . 6
β’ π = (BaseβπΊ) |
3 | | eqid 2733 |
. . . . . 6
β’
(distβπΊ) =
(distβπΊ) |
4 | | tglngval.i |
. . . . . 6
β’ πΌ = (ItvβπΊ) |
5 | | tglngval.g |
. . . . . . 7
β’ (π β πΊ β TarskiG) |
6 | 5 | adantr 482 |
. . . . . 6
β’ ((π β§ π = π) β πΊ β TarskiG) |
7 | | tgcolg.z |
. . . . . . 7
β’ (π β π β π) |
8 | 7 | adantr 482 |
. . . . . 6
β’ ((π β§ π = π) β π β π) |
9 | | tglngval.x |
. . . . . . 7
β’ (π β π β π) |
10 | 9 | adantr 482 |
. . . . . 6
β’ ((π β§ π = π) β π β π) |
11 | 2, 3, 4, 6, 8, 10 | tgbtwntriv2 27728 |
. . . . 5
β’ ((π β§ π = π) β π β (ππΌπ)) |
12 | | simpr 486 |
. . . . . 6
β’ ((π β§ π = π) β π = π) |
13 | 12 | oveq2d 7422 |
. . . . 5
β’ ((π β§ π = π) β (ππΌπ) = (ππΌπ)) |
14 | 11, 13 | eleqtrd 2836 |
. . . 4
β’ ((π β§ π = π) β π β (ππΌπ)) |
15 | 14 | 3mix2d 1338 |
. . 3
β’ ((π β§ π = π) β (π β (ππΌπ) β¨ π β (ππΌπ) β¨ π β (ππΌπ))) |
16 | 1, 15 | 2thd 265 |
. 2
β’ ((π β§ π = π) β ((π β (ππΏπ) β¨ π = π) β (π β (ππΌπ) β¨ π β (ππΌπ) β¨ π β (ππΌπ)))) |
17 | | simpr 486 |
. . . . . 6
β’ ((π β§ π β π) β π β π) |
18 | 17 | neneqd 2946 |
. . . . 5
β’ ((π β§ π β π) β Β¬ π = π) |
19 | | biorf 936 |
. . . . 5
β’ (Β¬
π = π β (π β (ππΏπ) β (π = π β¨ π β (ππΏπ)))) |
20 | 18, 19 | syl 17 |
. . . 4
β’ ((π β§ π β π) β (π β (ππΏπ) β (π = π β¨ π β (ππΏπ)))) |
21 | | orcom 869 |
. . . 4
β’ ((π = π β¨ π β (ππΏπ)) β (π β (ππΏπ) β¨ π = π)) |
22 | 20, 21 | bitrdi 287 |
. . 3
β’ ((π β§ π β π) β (π β (ππΏπ) β (π β (ππΏπ) β¨ π = π))) |
23 | | tglngval.l |
. . . 4
β’ πΏ = (LineGβπΊ) |
24 | 5 | adantr 482 |
. . . 4
β’ ((π β§ π β π) β πΊ β TarskiG) |
25 | 9 | adantr 482 |
. . . 4
β’ ((π β§ π β π) β π β π) |
26 | | tglngval.y |
. . . . 5
β’ (π β π β π) |
27 | 26 | adantr 482 |
. . . 4
β’ ((π β§ π β π) β π β π) |
28 | 7 | adantr 482 |
. . . 4
β’ ((π β§ π β π) β π β π) |
29 | 2, 23, 4, 24, 25, 27, 17, 28 | tgellng 27794 |
. . 3
β’ ((π β§ π β π) β (π β (ππΏπ) β (π β (ππΌπ) β¨ π β (ππΌπ) β¨ π β (ππΌπ)))) |
30 | 22, 29 | bitr3d 281 |
. 2
β’ ((π β§ π β π) β ((π β (ππΏπ) β¨ π = π) β (π β (ππΌπ) β¨ π β (ππΌπ) β¨ π β (ππΌπ)))) |
31 | 16, 30 | pm2.61dane 3030 |
1
β’ (π β ((π β (ππΏπ) β¨ π = π) β (π β (ππΌπ) β¨ π β (ππΌπ) β¨ π β (ππΌπ)))) |