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| Description: A 3-variable theorem. Experiment with weak deduction theorem. |
| Ref | Expression |
|---|---|
| 3vded21.1 |
|
| 3vded21.2 |
|
| Ref | Expression |
|---|---|
| 3vded21 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 3vded21.2 |
. . . . . . 7
| |
| 2 | df-i0 42 |
. . . . . . 7
| |
| 3 | 1, 2 | lbtr 131 |
. . . . . 6
|
| 4 | 3vded21.1 |
. . . . . . 7
| |
| 5 | df-i0 42 |
. . . . . . . 8
| |
| 6 | 2 | ax-r4 36 |
. . . . . . . . 9
|
| 7 | df-i2 44 |
. . . . . . . . . 10
| |
| 8 | anor3 82 |
. . . . . . . . . . 11
| |
| 9 | 8 | lor 66 |
. . . . . . . . . 10
|
| 10 | 7, 9 | ax-r2 35 |
. . . . . . . . 9
|
| 11 | 6, 10 | 2or 67 |
. . . . . . . 8
|
| 12 | ax-a2 30 |
. . . . . . . 8
| |
| 13 | 5, 11, 12 | 3tr 62 |
. . . . . . 7
|
| 14 | 4, 13 | lbtr 131 |
. . . . . 6
|
| 15 | 3, 14 | ler2an 165 |
. . . . 5
|
| 16 | comor2 444 |
. . . . . . . 8
| |
| 17 | 3 | leror 144 |
. . . . . . . . . . . 12
|
| 18 | ax-a3 31 |
. . . . . . . . . . . . 13
| |
| 19 | oridm 102 |
. . . . . . . . . . . . . 14
| |
| 20 | 19 | lor 66 |
. . . . . . . . . . . . 13
|
| 21 | 18, 20 | ax-r2 35 |
. . . . . . . . . . . 12
|
| 22 | 17, 21 | lbtr 131 |
. . . . . . . . . . 11
|
| 23 | 22 | lecom 172 |
. . . . . . . . . 10
|
| 24 | 23 | comcom 435 |
. . . . . . . . 9
|
| 25 | 24 | comcom2 175 |
. . . . . . . 8
|
| 26 | 16, 25 | com2or 465 |
. . . . . . 7
|
| 27 | comid 179 |
. . . . . . . 8
| |
| 28 | 27 | comcom2 175 |
. . . . . . 7
|
| 29 | 26, 28 | fh1 451 |
. . . . . 6
|
| 30 | or0 94 |
. . . . . . 7
| |
| 31 | 16, 25 | fh1 451 |
. . . . . . . . 9
|
| 32 | 31 | ax-r1 34 |
. . . . . . . 8
|
| 33 | dff 93 |
. . . . . . . 8
| |
| 34 | 32, 33 | 2or 67 |
. . . . . . 7
|
| 35 | ax-a2 30 |
. . . . . . . . . 10
| |
| 36 | 35 | ran 71 |
. . . . . . . . 9
|
| 37 | ancom 68 |
. . . . . . . . 9
| |
| 38 | a5c 113 |
. . . . . . . . 9
| |
| 39 | 36, 37, 38 | 3tr 62 |
. . . . . . . 8
|
| 40 | 39 | ax-r5 37 |
. . . . . . 7
|
| 41 | 30, 34, 40 | 3tr2 61 |
. . . . . 6
|
| 42 | 29, 41 | ax-r2 35 |
. . . . 5
|
| 43 | 15, 42 | lbtr 131 |
. . . 4
|
| 44 | 43 | leran 145 |
. . 3
|
| 45 | a5c 113 |
. . 3
| |
| 46 | comor2 444 |
. . . . 5
| |
| 47 | comid 179 |
. . . . . . 7
| |
| 48 | 47 | comcom2 175 |
. . . . . 6
|
| 49 | 23, 48 | com2an 466 |
. . . . 5
|
| 50 | 46, 49 | fh1r 455 |
. . . 4
|
| 51 | ax-a2 30 |
. . . . . . 7
| |
| 52 | 51 | lan 70 |
. . . . . 6
|
| 53 | a5c 113 |
. . . . . 6
| |
| 54 | 52, 53 | ax-r2 35 |
. . . . 5
|
| 55 | an32 76 |
. . . . . 6
| |
| 56 | anass 69 |
. . . . . 6
| |
| 57 | dff 93 |
. . . . . . . . 9
| |
| 58 | 57 | lan 70 |
. . . . . . . 8
|
| 59 | 58 | ax-r1 34 |
. . . . . . 7
|
| 60 | an0 100 |
. . . . . . 7
| |
| 61 | 59, 60 | ax-r2 35 |
. . . . . 6
|
| 62 | 55, 56, 61 | 3tr 62 |
. . . . 5
|
| 63 | 54, 62 | 2or 67 |
. . . 4
|
| 64 | 50, 63 | ax-r2 35 |
. . 3
|
| 65 | 44, 45, 64 | le3tr2 133 |
. 2
|
| 66 | or0 94 |
. 2
| |
| 67 | 65, 66 | lbtr 131 |
1
|
| Colors of variables: term |
| Syntax hints: |
| This theorem is referenced by: 3vded22 800 |
| 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-i0 42 df-i2 44 df-le1 122 df-le2 123 df-c1 124 df-c2 125 |