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Mirrors > Home > QLE Home > Th. List > u1lemonb | Unicode version |
Description: Lemma for Sasaki implication study. |
Ref | Expression |
---|---|
u1lemonb |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i1 44 | . . 3 | |
2 | 1 | ax-r5 38 | . 2 |
3 | or32 82 | . . 3 | |
4 | df-a 40 | . . . . 5 | |
5 | 4 | lor 70 | . . . 4 |
6 | df-t 41 | . . . . 5 | |
7 | 6 | ax-r1 35 | . . . 4 |
8 | 5, 7 | ax-r2 36 | . . 3 |
9 | 3, 8 | ax-r2 36 | . 2 |
10 | 2, 9 | 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-r1 35 ax-r2 36 ax-r5 38 |
This theorem depends on definitions: df-a 40 df-t 41 df-i1 44 |
This theorem is referenced by: u1lemnab 650 u3lem14a 791 |
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