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| Mirrors > Home > ILE Home > Th. List > cgsex4g | Unicode version | ||
| Description: An implicit substitution inference for 4 general classes. (Contributed by NM, 5-Aug-1995.) |
| Ref | Expression |
|---|---|
| cgsex4g.1 |
|
| cgsex4g.2 |
|
| Ref | Expression |
|---|---|
| cgsex4g |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cgsex4g.2 |
. . . . 5
| |
| 2 | 1 | biimpa 290 |
. . . 4
|
| 3 | 2 | exlimivv 1817 |
. . 3
|
| 4 | 3 | exlimivv 1817 |
. 2
|
| 5 | elisset 2613 |
. . . . . . . 8
| |
| 6 | elisset 2613 |
. . . . . . . 8
| |
| 7 | 5, 6 | anim12i 331 |
. . . . . . 7
|
| 8 | eeanv 1848 |
. . . . . . 7
| |
| 9 | 7, 8 | sylibr 132 |
. . . . . 6
|
| 10 | elisset 2613 |
. . . . . . . 8
| |
| 11 | elisset 2613 |
. . . . . . . 8
| |
| 12 | 10, 11 | anim12i 331 |
. . . . . . 7
|
| 13 | eeanv 1848 |
. . . . . . 7
| |
| 14 | 12, 13 | sylibr 132 |
. . . . . 6
|
| 15 | 9, 14 | anim12i 331 |
. . . . 5
|
| 16 | ee4anv 1850 |
. . . . 5
| |
| 17 | 15, 16 | sylibr 132 |
. . . 4
|
| 18 | cgsex4g.1 |
. . . . . 6
| |
| 19 | 18 | 2eximi 1532 |
. . . . 5
|
| 20 | 19 | 2eximi 1532 |
. . . 4
|
| 21 | 17, 20 | syl 14 |
. . 3
|
| 22 | 1 | biimprcd 158 |
. . . . . 6
|
| 23 | 22 | ancld 318 |
. . . . 5
|
| 24 | 23 | 2eximdv 1803 |
. . . 4
|
| 25 | 24 | 2eximdv 1803 |
. . 3
|
| 26 | 21, 25 | syl5com 29 |
. 2
|
| 27 | 4, 26 | impbid2 141 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-ext 2063 |
| This theorem depends on definitions: df-bi 115 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-v 2603 |
| This theorem is referenced by: copsex4g 4002 brecop 6219 |
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