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Mirrors > Home > QLE Home > Th. List > i3id | Unicode version |
Description: Identity for Kalmbach implication. |
Ref | Expression |
---|---|
i3id |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ancom 74 | . . . . . . . 8 | |
2 | dff 101 | . . . . . . . . 9 | |
3 | 2 | ax-r1 35 | . . . . . . . 8 |
4 | 1, 3 | ax-r2 36 | . . . . . . 7 |
5 | anidm 111 | . . . . . . 7 | |
6 | 4, 5 | 2or 72 | . . . . . 6 |
7 | ax-a2 31 | . . . . . 6 | |
8 | 6, 7 | ax-r2 36 | . . . . 5 |
9 | or0 102 | . . . . 5 | |
10 | 8, 9 | ax-r2 36 | . . . 4 |
11 | ax-a2 31 | . . . . . . 7 | |
12 | df-t 41 | . . . . . . . 8 | |
13 | 12 | ax-r1 35 | . . . . . . 7 |
14 | 11, 13 | ax-r2 36 | . . . . . 6 |
15 | 14 | lan 77 | . . . . 5 |
16 | an1 106 | . . . . 5 | |
17 | 15, 16 | ax-r2 36 | . . . 4 |
18 | 10, 17 | 2or 72 | . . 3 |
19 | 18, 11 | ax-r2 36 | . 2 |
20 | df-i3 46 | . 2 | |
21 | 19, 20, 12 | 3tr1 63 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wt 8 wf 9 wi3 14 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 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-i3 46 |
This theorem is referenced by: bina1 282 bina2 283 ska14 514 i3orcom 525 i3ancom 526 i3th4 546 |
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