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Mirrors > Home > QLE Home > Th. List > ud1lem0c | Unicode version |
Description: Lemma for unified disjunction. |
Ref | Expression |
---|---|
ud1lem0c |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i1 44 | . . 3 | |
2 | df-a 40 | . . . . . 6 | |
3 | df-a 40 | . . . . . . . . 9 | |
4 | 3 | ax-r1 35 | . . . . . . . 8 |
5 | 4 | lor 70 | . . . . . . 7 |
6 | 5 | ax-r4 37 | . . . . . 6 |
7 | 2, 6 | ax-r2 36 | . . . . 5 |
8 | 7 | ax-r1 35 | . . . 4 |
9 | 8 | con3 68 | . . 3 |
10 | 1, 9 | ax-r2 36 | . 2 |
11 | 10 | con2 67 | 1 |
Colors of variables: term |
Syntax hints: wb 1 wn 4 wo 6 wa 7 wi1 12 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 |
This theorem depends on definitions: df-a 40 df-i1 44 |
This theorem is referenced by: ud1lem1 560 ud1lem3 562 u1lemc6 706 u1lem11 780 i1abs 801 sa5 836 elimcons2 869 kb10iii 893 |
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