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| Mirrors > Home > QLE Home > Th. List > u4lemanb | Unicode version | ||
| Description: Lemma for non-tollens implication study. |
| Ref | Expression |
|---|---|
| u4lemanb |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-i4 47 |
. . 3
| |
| 2 | 1 | ran 78 |
. 2
|
| 3 | comanr2 465 |
. . . . . 6
| |
| 4 | 3 | comcom3 454 |
. . . . 5
|
| 5 | comanr2 465 |
. . . . . 6
| |
| 6 | 5 | comcom3 454 |
. . . . 5
|
| 7 | 4, 6 | com2or 483 |
. . . 4
|
| 8 | comorr2 463 |
. . . . . 6
| |
| 9 | 8 | comcom3 454 |
. . . . 5
|
| 10 | comid 187 |
. . . . 5
| |
| 11 | 9, 10 | com2an 484 |
. . . 4
|
| 12 | 7, 11 | fh1r 473 |
. . 3
|
| 13 | ax-a2 31 |
. . . 4
| |
| 14 | anass 76 |
. . . . . . 7
| |
| 15 | anidm 111 |
. . . . . . . 8
| |
| 16 | 15 | lan 77 |
. . . . . . 7
|
| 17 | 14, 16 | ax-r2 36 |
. . . . . 6
|
| 18 | 4, 6 | fh1r 473 |
. . . . . . 7
|
| 19 | anass 76 |
. . . . . . . . . 10
| |
| 20 | dff 101 |
. . . . . . . . . . . . 13
| |
| 21 | 20 | lan 77 |
. . . . . . . . . . . 12
|
| 22 | 21 | ax-r1 35 |
. . . . . . . . . . 11
|
| 23 | an0 108 |
. . . . . . . . . . 11
| |
| 24 | 22, 23 | ax-r2 36 |
. . . . . . . . . 10
|
| 25 | 19, 24 | ax-r2 36 |
. . . . . . . . 9
|
| 26 | anass 76 |
. . . . . . . . . 10
| |
| 27 | 20 | lan 77 |
. . . . . . . . . . . 12
|
| 28 | 27 | ax-r1 35 |
. . . . . . . . . . 11
|
| 29 | an0 108 |
. . . . . . . . . . 11
| |
| 30 | 28, 29 | ax-r2 36 |
. . . . . . . . . 10
|
| 31 | 26, 30 | ax-r2 36 |
. . . . . . . . 9
|
| 32 | 25, 31 | 2or 72 |
. . . . . . . 8
|
| 33 | or0 102 |
. . . . . . . 8
| |
| 34 | 32, 33 | ax-r2 36 |
. . . . . . 7
|
| 35 | 18, 34 | ax-r2 36 |
. . . . . 6
|
| 36 | 17, 35 | 2or 72 |
. . . . 5
|
| 37 | or0 102 |
. . . . 5
| |
| 38 | 36, 37 | ax-r2 36 |
. . . 4
|
| 39 | 13, 38 | ax-r2 36 |
. . 3
|
| 40 | 12, 39 | ax-r2 36 |
. 2
|
| 41 | 2, 40 | ax-r2 36 |
1
|
| Colors of variables: term |
| Syntax hints: |
| This theorem was proved from axioms: ax-a1 30 ax-a2 31 ax-a3 32 ax-a4 33 ax-a5 34 ax-r1 35 ax-r2 36 ax-r4 37 ax-r5 38 ax-r3 439 |
| This theorem depends on definitions: df-b 39 df-a 40 df-t 41 df-f 42 df-i4 47 df-le1 130 df-le2 131 df-c1 132 df-c2 133 |
| This theorem is referenced by: u4lemnob 673 u24lem 770 |
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