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Mirrors > Home > QLE Home > Th. List > u2lem7 | Unicode version |
Description: Lemma for unified implication study. |
Ref | Expression |
---|---|
u2lem7 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i2 45 | . 2 | |
2 | df-i2 45 | . . . . 5 | |
3 | ax-a1 30 | . . . . . . . 8 | |
4 | 3 | ax-r1 35 | . . . . . . 7 |
5 | 4 | ran 78 | . . . . . 6 |
6 | 5 | lor 70 | . . . . 5 |
7 | 2, 6 | ax-r2 36 | . . . 4 |
8 | ancom 74 | . . . . 5 | |
9 | u2lemnaa 641 | . . . . 5 | |
10 | 8, 9 | ax-r2 36 | . . . 4 |
11 | 7, 10 | 2or 72 | . . 3 |
12 | ax-a3 32 | . . . 4 | |
13 | ax-a2 31 | . . . 4 | |
14 | 12, 13 | ax-r2 36 | . . 3 |
15 | 11, 14 | ax-r2 36 | . 2 |
16 | 1, 15 | ax-r2 36 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wi2 13 |
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-i2 45 df-le1 130 df-le2 131 |
This theorem is referenced by: u2lem7n 775 u2lem8 782 |
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