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Mirrors > Home > QLE Home > Th. List > oaliii | Unicode version |
Description: Orthoarguesian law. Godowski/Greechie, Eq. III. |
Ref | Expression |
---|---|
oaliii |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | anass 76 | . . . . 5 | |
2 | anidm 111 | . . . . . 6 | |
3 | 2 | lan 77 | . . . . 5 |
4 | 1, 3 | ax-r2 36 | . . . 4 |
5 | 4 | ax-r1 35 | . . 3 |
6 | oal2 999 | . . . 4 | |
7 | 6 | leran 153 | . . 3 |
8 | 5, 7 | bltr 138 | . 2 |
9 | anass 76 | . . . . 5 | |
10 | ax-a2 31 | . . . . . . . . . 10 | |
11 | 10 | ax-r4 37 | . . . . . . . . 9 |
12 | ancom 74 | . . . . . . . . 9 | |
13 | 11, 12 | 2or 72 | . . . . . . . 8 |
14 | 13 | ran 78 | . . . . . . 7 |
15 | 14, 2 | ax-r2 36 | . . . . . 6 |
16 | 15 | lan 77 | . . . . 5 |
17 | 9, 16 | ax-r2 36 | . . . 4 |
18 | 17 | ax-r1 35 | . . 3 |
19 | oal2 999 | . . . 4 | |
20 | 19 | leran 153 | . . 3 |
21 | 18, 20 | bltr 138 | . 2 |
22 | 8, 21 | lebi 145 | 1 |
Colors of variables: term |
Syntax hints: wb 1 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-3oa 998 |
This theorem depends on definitions: 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: oalii 1002 oath1 1004 |
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