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Mirrors > Home > QLE Home > Th. List > u1lemanb | Unicode version |
Description: Lemma for Sasaki implication study. |
Ref | Expression |
---|---|
u1lemanb |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i1 44 | . . 3 | |
2 | 1 | ran 78 | . 2 |
3 | ax-a2 31 | . . . 4 | |
4 | 3 | ran 78 | . . 3 |
5 | coman2 186 | . . . . . 6 | |
6 | 5 | comcom2 183 | . . . . 5 |
7 | coman1 185 | . . . . . 6 | |
8 | 7 | comcom2 183 | . . . . 5 |
9 | 6, 8 | fh2r 474 | . . . 4 |
10 | ax-a2 31 | . . . . 5 | |
11 | anass 76 | . . . . . . . 8 | |
12 | dff 101 | . . . . . . . . . . 11 | |
13 | 12 | lan 77 | . . . . . . . . . 10 |
14 | 13 | ax-r1 35 | . . . . . . . . 9 |
15 | an0 108 | . . . . . . . . 9 | |
16 | 14, 15 | ax-r2 36 | . . . . . . . 8 |
17 | 11, 16 | ax-r2 36 | . . . . . . 7 |
18 | 17 | lor 70 | . . . . . 6 |
19 | or0 102 | . . . . . 6 | |
20 | 18, 19 | ax-r2 36 | . . . . 5 |
21 | 10, 20 | ax-r2 36 | . . . 4 |
22 | 9, 21 | ax-r2 36 | . . 3 |
23 | 4, 22 | ax-r2 36 | . 2 |
24 | 2, 23 | ax-r2 36 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wf 9 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: u1lemnob 670 u3lem14a 791 negantlem5 853 |
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