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Mirrors > Home > QLE Home > Th. List > k1-7 | Unicode version |
Description: Statement (7) in proof of Theorem 1 of Kalmbach, Orthomodular Lattices, p. 21. |
Ref | Expression |
---|---|
k1-7.1 |
Ref | Expression |
---|---|
k1-7 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | anor3 90 | . . . . 5 | |
2 | 1 | cm 61 | . . . 4 |
3 | k1-7.1 | . . . . . 6 | |
4 | ax-a1 30 | . . . . . . . 8 | |
5 | 4 | lan 77 | . . . . . . 7 |
6 | 5 | ror 71 | . . . . . 6 |
7 | orcom 73 | . . . . . 6 | |
8 | 3, 6, 7 | 3tr 65 | . . . . 5 |
9 | 8 | con4 69 | . . . 4 |
10 | oran3 93 | . . . . 5 | |
11 | oran2 92 | . . . . 5 | |
12 | 10, 11 | 2an 79 | . . . 4 |
13 | 2, 9, 12 | 3tr1 63 | . . 3 |
14 | 13 | ran 78 | . 2 |
15 | 4 | lor 70 | . . . . . 6 |
16 | 15 | ran 78 | . . . . 5 |
17 | 16 | ran 78 | . . . 4 |
18 | 17 | cm 61 | . . 3 |
19 | anass 76 | . . 3 | |
20 | 18, 19 | tr 62 | . 2 |
21 | ancom 74 | . . . 4 | |
22 | ax-a2 31 | . . . . 5 | |
23 | 22 | lan 77 | . . . 4 |
24 | anabs 121 | . . . 4 | |
25 | 21, 23, 24 | 3tr 65 | . . 3 |
26 | 25 | lan 77 | . 2 |
27 | 14, 20, 26 | 3tr 65 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 |
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 |
This theorem depends on definitions: df-a 40 |
This theorem is referenced by: (None) |
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