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Mirrors > Home > QLE Home > Th. List > oaliv | Unicode version |
Description: Orthoarguesian law. Godowski/Greechie, Eq. IV. |
Ref | Expression |
---|---|
oaliv |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lea 160 | . . . 4 | |
2 | oalii 1002 | . . . 4 | |
3 | 1, 2 | ler2an 173 | . . 3 |
4 | df-i2 45 | . . . . . . 7 | |
5 | ancom 74 | . . . . . . . 8 | |
6 | 5 | lor 70 | . . . . . . 7 |
7 | 4, 6 | ax-r2 36 | . . . . . 6 |
8 | 7 | lan 77 | . . . . 5 |
9 | omlan 448 | . . . . 5 | |
10 | 8, 9 | ax-r2 36 | . . . 4 |
11 | 10 | ax-r1 35 | . . 3 |
12 | 3, 11 | lbtr 139 | . 2 |
13 | leo 158 | . 2 | |
14 | 12, 13 | letr 137 | 1 |
Colors of variables: term |
Syntax hints: wle 2 wn 4 wo 6 wa 7 wi2 13 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-r3 439 ax-3oa 998 |
This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i1 44 df-i2 45 df-le1 130 df-le2 131 |
This theorem is referenced by: (None) |
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