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Mirrors > Home > QLE Home > Th. List > i5con | Unicode version |
Description: Converse of . |
Ref | Expression |
---|---|
i5con |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ancom 74 | . . . 4 | |
2 | ax-a2 31 | . . . . 5 | |
3 | ancom 74 | . . . . . . 7 | |
4 | ax-a1 30 | . . . . . . . 8 | |
5 | 4 | ran 78 | . . . . . . 7 |
6 | 3, 5 | ax-r2 36 | . . . . . 6 |
7 | ancom 74 | . . . . . . 7 | |
8 | ax-a1 30 | . . . . . . . 8 | |
9 | 4, 8 | 2an 79 | . . . . . . 7 |
10 | 7, 9 | ax-r2 36 | . . . . . 6 |
11 | 6, 10 | 2or 72 | . . . . 5 |
12 | 2, 11 | ax-r2 36 | . . . 4 |
13 | 1, 12 | 2or 72 | . . 3 |
14 | ax-a2 31 | . . 3 | |
15 | ax-a3 32 | . . 3 | |
16 | 13, 14, 15 | 3tr1 63 | . 2 |
17 | df-i5 48 | . 2 | |
18 | df-i5 48 | . 2 | |
19 | 16, 17, 18 | 3tr1 63 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wi5 16 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-a 40 df-i5 48 |
This theorem is referenced by: nom45 330 |
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