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Mirrors > Home > QLE Home > Th. List > u1lemoa | Unicode version |
Description: Lemma for Sasaki implication study. |
Ref | Expression |
---|---|
u1lemoa |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i1 44 | . . 3 | |
2 | 1 | ax-r5 38 | . 2 |
3 | ax-a2 31 | . . 3 | |
4 | ax-a3 32 | . . . . 5 | |
5 | 4 | ax-r1 35 | . . . 4 |
6 | ax-a2 31 | . . . . 5 | |
7 | df-t 41 | . . . . . . . 8 | |
8 | 7 | lor 70 | . . . . . . 7 |
9 | 8 | ax-r1 35 | . . . . . 6 |
10 | or1 104 | . . . . . 6 | |
11 | 9, 10 | ax-r2 36 | . . . . 5 |
12 | 6, 11 | ax-r2 36 | . . . 4 |
13 | 5, 12 | ax-r2 36 | . . 3 |
14 | 3, 13 | ax-r2 36 | . 2 |
15 | 2, 14 | ax-r2 36 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wt 8 wi1 12 |
This theorem was proved from axioms: ax-a2 31 ax-a3 32 ax-a4 33 ax-r1 35 ax-r2 36 ax-r5 38 |
This theorem depends on definitions: df-t 41 df-i1 44 |
This theorem is referenced by: u1lemnana 645 oi3oa3lem1 732 i1orni1 847 oau 929 |
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