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Mirrors > Home > QLE Home > Th. List > oa3-2lemb | Unicode version |
Description: Lemma for 3-OA(2). Equivalence with substitution into 4-OA. |
Ref | Expression |
---|---|
oa3-2lemb |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-a3 32 | . . . . 5 | |
2 | i1id 275 | . . . . . . . . . . . . 13 | |
3 | 2 | lan 77 | . . . . . . . . . . . 12 |
4 | an1 106 | . . . . . . . . . . . 12 | |
5 | 3, 4 | ax-r2 36 | . . . . . . . . . . 11 |
6 | 5 | lor 70 | . . . . . . . . . 10 |
7 | or12 80 | . . . . . . . . . . . 12 | |
8 | oridm 110 | . . . . . . . . . . . . 13 | |
9 | 8 | lor 70 | . . . . . . . . . . . 12 |
10 | 7, 9 | ax-r2 36 | . . . . . . . . . . 11 |
11 | df-i1 44 | . . . . . . . . . . . 12 | |
12 | 11 | lor 70 | . . . . . . . . . . 11 |
13 | 10, 12, 11 | 3tr1 63 | . . . . . . . . . 10 |
14 | 6, 13 | ax-r2 36 | . . . . . . . . 9 |
15 | 2 | lan 77 | . . . . . . . . . . . 12 |
16 | an1 106 | . . . . . . . . . . . 12 | |
17 | 15, 16 | ax-r2 36 | . . . . . . . . . . 11 |
18 | 17 | lor 70 | . . . . . . . . . 10 |
19 | or12 80 | . . . . . . . . . . . 12 | |
20 | oridm 110 | . . . . . . . . . . . . 13 | |
21 | 20 | lor 70 | . . . . . . . . . . . 12 |
22 | 19, 21 | ax-r2 36 | . . . . . . . . . . 11 |
23 | df-i1 44 | . . . . . . . . . . . 12 | |
24 | 23 | lor 70 | . . . . . . . . . . 11 |
25 | 22, 24, 23 | 3tr1 63 | . . . . . . . . . 10 |
26 | 18, 25 | ax-r2 36 | . . . . . . . . 9 |
27 | 14, 26 | 2an 79 | . . . . . . . 8 |
28 | 27 | lor 70 | . . . . . . 7 |
29 | oridm 110 | . . . . . . 7 | |
30 | 28, 29 | ax-r2 36 | . . . . . 6 |
31 | 30 | lor 70 | . . . . 5 |
32 | 1, 31 | ax-r2 36 | . . . 4 |
33 | 32 | lan 77 | . . 3 |
34 | 33 | lor 70 | . 2 |
35 | 34 | lan 77 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wt 8 wi1 12 |
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 df-t 41 df-f 42 df-i1 44 |
This theorem is referenced by: oa3-2to4 988 |
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