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Mirrors > Home > QLE Home > Th. List > u2lem8 | Unicode version |
Description: Lemma for unified implication study. |
Ref | Expression |
---|---|
u2lem8 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i2 45 | . 2 | |
2 | u2lem7 773 | . . . 4 | |
3 | ax-a1 30 | . . . . . . 7 | |
4 | 3 | ax-r1 35 | . . . . . 6 |
5 | u2lem7n 775 | . . . . . 6 | |
6 | 4, 5 | 2an 79 | . . . . 5 |
7 | an12 81 | . . . . . 6 | |
8 | anass 76 | . . . . . . 7 | |
9 | anor1 88 | . . . . . . . . . . 11 | |
10 | 9 | lan 77 | . . . . . . . . . 10 |
11 | dff 101 | . . . . . . . . . . 11 | |
12 | 11 | ax-r1 35 | . . . . . . . . . 10 |
13 | 10, 12 | ax-r2 36 | . . . . . . . . 9 |
14 | 13 | lan 77 | . . . . . . . 8 |
15 | an0 108 | . . . . . . . 8 | |
16 | 14, 15 | ax-r2 36 | . . . . . . 7 |
17 | 8, 16 | ax-r2 36 | . . . . . 6 |
18 | 7, 17 | ax-r2 36 | . . . . 5 |
19 | 6, 18 | ax-r2 36 | . . . 4 |
20 | 2, 19 | 2or 72 | . . 3 |
21 | or0 102 | . . . 4 | |
22 | 2 | ax-r1 35 | . . . 4 |
23 | 21, 22 | ax-r2 36 | . . 3 |
24 | 20, 23 | ax-r2 36 | . 2 |
25 | 1, 24 | ax-r2 36 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wf 9 wi2 13 |
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 |
This theorem depends on definitions: df-a 40 df-t 41 df-f 42 df-i2 45 df-le1 130 df-le2 131 |
This theorem is referenced by: (None) |
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