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Mirrors > Home > QLE Home > Th. List > oa3-3lem | Unicode version |
Description: Lemma for 3-OA(3). Equivalence with substitution into 6-OA dual. |
Ref | Expression |
---|---|
oa3-3lem |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfb 94 | . . . . . 6 | |
2 | 1 | ax-r1 35 | . . . . 5 |
3 | an1 106 | . . . . . . . . 9 | |
4 | ax-a1 30 | . . . . . . . . 9 | |
5 | 3, 4 | ax-r2 36 | . . . . . . . 8 |
6 | 5 | ax-r5 38 | . . . . . . 7 |
7 | df-i1 44 | . . . . . . . 8 | |
8 | 7 | ax-r1 35 | . . . . . . 7 |
9 | 6, 8 | ax-r2 36 | . . . . . 6 |
10 | an1 106 | . . . . . . . . 9 | |
11 | ax-a1 30 | . . . . . . . . 9 | |
12 | 10, 11 | ax-r2 36 | . . . . . . . 8 |
13 | 12 | ax-r5 38 | . . . . . . 7 |
14 | df-i1 44 | . . . . . . . 8 | |
15 | 14 | ax-r1 35 | . . . . . . 7 |
16 | 13, 15 | ax-r2 36 | . . . . . 6 |
17 | 9, 16 | 2an 79 | . . . . 5 |
18 | 2, 17 | 2or 72 | . . . 4 |
19 | 18 | lan 77 | . . 3 |
20 | 19 | lor 70 | . 2 |
21 | 20 | lan 77 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 tb 5 wo 6 wa 7 wt 8 wi1 12 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i1 44 |
This theorem is referenced by: oa3-6to3 987 |
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