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Mirrors > Home > QLE Home > Th. List > oa3-6lem | Unicode version |
Description: Lemma for 3-OA(6). Equivalence with substitution into 4-OA. |
Ref | Expression |
---|---|
oa3-6lem |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | an1 106 | . . . . . . . . 9 | |
2 | 1i1 274 | . . . . . . . . . . 11 | |
3 | 2 | lan 77 | . . . . . . . . . 10 |
4 | u1lemab 610 | . . . . . . . . . 10 | |
5 | 3, 4 | ax-r2 36 | . . . . . . . . 9 |
6 | 1, 5 | 2or 72 | . . . . . . . 8 |
7 | ax-a3 32 | . . . . . . . . 9 | |
8 | 7 | ax-r1 35 | . . . . . . . 8 |
9 | orabs 120 | . . . . . . . . 9 | |
10 | 9 | ax-r5 38 | . . . . . . . 8 |
11 | 6, 8, 10 | 3tr 65 | . . . . . . 7 |
12 | an1 106 | . . . . . . . . 9 | |
13 | 2 | lan 77 | . . . . . . . . . 10 |
14 | u1lemab 610 | . . . . . . . . . 10 | |
15 | 13, 14 | ax-r2 36 | . . . . . . . . 9 |
16 | 12, 15 | 2or 72 | . . . . . . . 8 |
17 | ax-a3 32 | . . . . . . . . 9 | |
18 | 17 | ax-r1 35 | . . . . . . . 8 |
19 | orabs 120 | . . . . . . . . 9 | |
20 | 19 | ax-r5 38 | . . . . . . . 8 |
21 | 16, 18, 20 | 3tr 65 | . . . . . . 7 |
22 | 11, 21 | 2an 79 | . . . . . 6 |
23 | 22 | lor 70 | . . . . 5 |
24 | or32 82 | . . . . 5 | |
25 | leo 158 | . . . . . . . . 9 | |
26 | leo 158 | . . . . . . . . 9 | |
27 | 25, 26 | le2an 169 | . . . . . . . 8 |
28 | 27 | df-le2 131 | . . . . . . 7 |
29 | ax-a1 30 | . . . . . . . . . 10 | |
30 | 29 | ax-r5 38 | . . . . . . . . 9 |
31 | df-i1 44 | . . . . . . . . . 10 | |
32 | 31 | ax-r1 35 | . . . . . . . . 9 |
33 | 30, 32 | ax-r2 36 | . . . . . . . 8 |
34 | ax-a1 30 | . . . . . . . . . 10 | |
35 | 34 | ax-r5 38 | . . . . . . . . 9 |
36 | df-i1 44 | . . . . . . . . . 10 | |
37 | 36 | ax-r1 35 | . . . . . . . . 9 |
38 | 35, 37 | ax-r2 36 | . . . . . . . 8 |
39 | 33, 38 | 2an 79 | . . . . . . 7 |
40 | 28, 39 | ax-r2 36 | . . . . . 6 |
41 | 40 | ax-r5 38 | . . . . 5 |
42 | 23, 24, 41 | 3tr 65 | . . . 4 |
43 | 42 | lan 77 | . . 3 |
44 | 43 | lor 70 | . 2 |
45 | 44 | 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-a4 33 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-r3 439 |
This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i1 44 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
This theorem is referenced by: oa3-6to3 987 |
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