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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 296 |
. . . 4
|
| 3 | 2 | exlimivv 1921 |
. . 3
|
| 4 | 3 | exlimivv 1921 |
. 2
|
| 5 | elisset 2791 |
. . . . . . . 8
| |
| 6 | elisset 2791 |
. . . . . . . 8
| |
| 7 | 5, 6 | anim12i 338 |
. . . . . . 7
|
| 8 | eeanv 1961 |
. . . . . . 7
| |
| 9 | 7, 8 | sylibr 134 |
. . . . . 6
|
| 10 | elisset 2791 |
. . . . . . . 8
| |
| 11 | elisset 2791 |
. . . . . . . 8
| |
| 12 | 10, 11 | anim12i 338 |
. . . . . . 7
|
| 13 | eeanv 1961 |
. . . . . . 7
| |
| 14 | 12, 13 | sylibr 134 |
. . . . . 6
|
| 15 | 9, 14 | anim12i 338 |
. . . . 5
|
| 16 | ee4anv 1963 |
. . . . 5
| |
| 17 | 15, 16 | sylibr 134 |
. . . 4
|
| 18 | cgsex4g.1 |
. . . . . 6
| |
| 19 | 18 | 2eximi 1625 |
. . . . 5
|
| 20 | 19 | 2eximi 1625 |
. . . 4
|
| 21 | 17, 20 | syl 14 |
. . 3
|
| 22 | 1 | biimprcd 160 |
. . . . . 6
|
| 23 | 22 | ancld 325 |
. . . . 5
|
| 24 | 23 | 2eximdv 1906 |
. . . 4
|
| 25 | 24 | 2eximdv 1906 |
. . 3
|
| 26 | 21, 25 | syl5com 29 |
. 2
|
| 27 | 4, 26 | impbid2 143 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-ext 2189 |
| This theorem depends on definitions: df-bi 117 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-v 2778 |
| This theorem is referenced by: copsex4g 4309 brecop 6735 |
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