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Mirrors > Home > QLE Home > Th. List > u2lemnana | Unicode version |
Description: Lemma for Dishkant implication study. |
Ref | Expression |
---|---|
u2lemnana |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | anor3 90 | . . 3 | |
2 | u2lemoa 621 | . . . 4 | |
3 | 2 | ax-r4 37 | . . 3 |
4 | 1, 3 | ax-r2 36 | . 2 |
5 | df-f 42 | . . 3 | |
6 | 5 | ax-r1 35 | . 2 |
7 | 4, 6 | ax-r2 36 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wt 8 wf 9 wi2 13 |
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-t 41 df-f 42 df-i2 45 |
This theorem is referenced by: u2lem5 762 |
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