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| Description: Lemma for relevance implication study. |
| Ref | Expression |
|---|---|
| u5lemana |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-i5 47 |
. . 3
| |
| 2 | 1 | ran 71 |
. 2
|
| 3 | comanr1 446 |
. . . . . 6
| |
| 4 | 3 | comcom3 436 |
. . . . 5
|
| 5 | comanr1 446 |
. . . . 5
| |
| 6 | 4, 5 | com2or 465 |
. . . 4
|
| 7 | comanr1 446 |
. . . 4
| |
| 8 | 6, 7 | fh1r 455 |
. . 3
|
| 9 | 4, 5 | fh1r 455 |
. . . . 5
|
| 10 | ax-a2 30 |
. . . . . 6
| |
| 11 | an32 76 |
. . . . . . . . 9
| |
| 12 | anidm 103 |
. . . . . . . . . 10
| |
| 13 | 12 | ran 71 |
. . . . . . . . 9
|
| 14 | 11, 13 | ax-r2 35 |
. . . . . . . 8
|
| 15 | an32 76 |
. . . . . . . . 9
| |
| 16 | ancom 68 |
. . . . . . . . . 10
| |
| 17 | dff 93 |
. . . . . . . . . . . . 13
| |
| 18 | 17 | lan 70 |
. . . . . . . . . . . 12
|
| 19 | 18 | ax-r1 34 |
. . . . . . . . . . 11
|
| 20 | an0 100 |
. . . . . . . . . . 11
| |
| 21 | 19, 20 | ax-r2 35 |
. . . . . . . . . 10
|
| 22 | 16, 21 | ax-r2 35 |
. . . . . . . . 9
|
| 23 | 15, 22 | ax-r2 35 |
. . . . . . . 8
|
| 24 | 14, 23 | 2or 67 |
. . . . . . 7
|
| 25 | or0 94 |
. . . . . . 7
| |
| 26 | 24, 25 | ax-r2 35 |
. . . . . 6
|
| 27 | 10, 26 | ax-r2 35 |
. . . . 5
|
| 28 | 9, 27 | ax-r2 35 |
. . . 4
|
| 29 | an32 76 |
. . . . 5
| |
| 30 | 12 | ran 71 |
. . . . 5
|
| 31 | 29, 30 | ax-r2 35 |
. . . 4
|
| 32 | 28, 31 | 2or 67 |
. . 3
|
| 33 | 8, 32 | ax-r2 35 |
. 2
|
| 34 | 2, 33 | ax-r2 35 |
1
|
| Colors of variables: term |
| Syntax hints: |
| This theorem is referenced by: u5lemnoa 646 |
| This theorem was proved from axioms: ax-a1 29 ax-a2 30 ax-a3 31 ax-a4 32 ax-a5 33 ax-r1 34 ax-r2 35 ax-r4 36 ax-r5 37 ax-r3 421 |
| This theorem depends on definitions: df-b 38 df-a 39 df-t 40 df-f 41 df-i5 47 df-le1 122 df-le2 123 df-c1 124 df-c2 125 |