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Mirrors > Home > QLE Home > Th. List > i2or | Unicode version |
Description: Lemma for disjunction of . |
Ref | Expression |
---|---|
i2or |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-i2 45 | . . . 4 | |
2 | lea 160 | . . . . . . 7 | |
3 | 2 | lecon 154 | . . . . . 6 |
4 | 3 | leran 153 | . . . . 5 |
5 | 4 | lelor 166 | . . . 4 |
6 | 1, 5 | bltr 138 | . . 3 |
7 | df-i2 45 | . . . 4 | |
8 | lear 161 | . . . . . . 7 | |
9 | 8 | lecon 154 | . . . . . 6 |
10 | 9 | leran 153 | . . . . 5 |
11 | 10 | lelor 166 | . . . 4 |
12 | 7, 11 | bltr 138 | . . 3 |
13 | 6, 12 | lel2or 170 | . 2 |
14 | df-i2 45 | . . 3 | |
15 | 14 | ax-r1 35 | . 2 |
16 | 13, 15 | lbtr 139 | 1 |
Colors of variables: term |
Syntax hints: wle 2 wn 4 wo 6 wa 7 wi2 13 |
This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a5 34 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 df-le1 130 df-le2 131 |
This theorem is referenced by: orbile 843 |
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