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| Mirrors > Home > NFE Home > Th. List > imacok | Unicode version | ||
| Description: Image under a composition. (Contributed by SF, 4-Feb-2015.) |
| Ref | Expression |
|---|---|
| imacok |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2863 |
. . . . . 6
| |
| 2 | vex 2863 |
. . . . . 6
| |
| 3 | 1, 2 | opkelcok 4263 |
. . . . 5
|
| 4 | 3 | rexbii 2640 |
. . . 4
|
| 5 | rexcom4 2879 |
. . . 4
| |
| 6 | df-rex 2621 |
. . . . 5
| |
| 7 | vex 2863 |
. . . . . . . . 9
| |
| 8 | 7 | elimak 4260 |
. . . . . . . 8
|
| 9 | 8 | anbi1i 676 |
. . . . . . 7
|
| 10 | r19.41v 2765 |
. . . . . . 7
| |
| 11 | 9, 10 | bitr4i 243 |
. . . . . 6
|
| 12 | 11 | exbii 1582 |
. . . . 5
|
| 13 | 6, 12 | bitr2i 241 |
. . . 4
|
| 14 | 4, 5, 13 | 3bitri 262 |
. . 3
|
| 15 | 2 | elimak 4260 |
. . 3
|
| 16 | 2 | elimak 4260 |
. . 3
|
| 17 | 14, 15, 16 | 3bitr4i 268 |
. 2
|
| 18 | 17 | eqriv 2350 |
1
|
| Colors of variables: wff setvar class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 ax-17 1616 ax-9 1654 ax-8 1675 ax-6 1729 ax-7 1734 ax-11 1746 ax-12 1925 ax-ext 2334 ax-nin 4079 ax-sn 4088 |
| This theorem depends on definitions: df-bi 177 df-or 359 df-an 360 df-3an 936 df-nan 1288 df-tru 1319 df-ex 1542 df-nf 1545 df-sb 1649 df-clab 2340 df-cleq 2346 df-clel 2349 df-nfc 2479 df-ne 2519 df-rex 2621 df-v 2862 df-nin 3212 df-compl 3213 df-in 3214 df-un 3215 df-dif 3216 df-ss 3260 df-nul 3552 df-sn 3742 df-pr 3743 df-opk 4059 df-cnvk 4187 df-ins2k 4188 df-ins3k 4189 df-imak 4190 df-cok 4191 |
| This theorem is referenced by: (None) |
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