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Related theorems Unicode version |
| Description: Move class substitution in and out of the image of a function. (Contributed by FL, 15-Dec-2006.) |
| Ref | Expression |
|---|---|
| csbima12g |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-17 1317 |
. . . 4
| |
| 2 | ax-17 1317 |
. . . . 5
| |
| 3 | 2 | hbcsb1g 2567 |
. . . 4
|
| 4 | 2 | hbcsb1g 2567 |
. . . 4
|
| 5 | 1, 3, 4 | hbimad 4275 |
. . 3
|
| 6 | a9e 1483 |
. . . . . 6
| |
| 7 | visset 2295 |
. . . . . . . . 9
| |
| 8 | ax-17 1317 |
. . . . . . . . 9
| |
| 9 | 7, 8 | hbcsb1 2568 |
. . . . . . . 8
|
| 10 | 7, 8 | hbcsb1 2568 |
. . . . . . . . 9
|
| 11 | 7, 8 | hbcsb1 2568 |
. . . . . . . . 9
|
| 12 | 10, 11 | hbima 4273 |
. . . . . . . 8
|
| 13 | 9, 12 | hbeq 1995 |
. . . . . . 7
|
| 14 | csbeq1a 2546 |
. . . . . . . . 9
| |
| 15 | 14 | imaeq1d 4263 |
. . . . . . . 8
|
| 16 | csbeq1a 2546 |
. . . . . . . 8
| |
| 17 | csbeq1a 2546 |
. . . . . . . . 9
| |
| 18 | 17 | imaeq2d 4264 |
. . . . . . . 8
|
| 19 | 15, 16, 18 | 3eqtr3d 1934 |
. . . . . . 7
|
| 20 | 13, 19 | 19.23ai 1412 |
. . . . . 6
|
| 21 | 6, 20 | ax-mp 7 |
. . . . 5
|
| 22 | 21 | a1i 8 |
. . . 4
|
| 23 | csbeq1a 2546 |
. . . . 5
| |
| 24 | 23 | imaeq1d 4263 |
. . . 4
|
| 25 | csbeq1a 2546 |
. . . . 5
| |
| 26 | 25 | imaeq2d 4264 |
. . . 4
|
| 27 | 22, 24, 26 | 3eqtrd 1929 |
. . 3
|
| 28 | 5, 27 | csbiegf 2575 |
. 2
|
| 29 | csbcog 2547 |
. 2
| |
| 30 | csbcog 2547 |
. . . 4
| |
| 31 | 30 | imaeq1d 4263 |
. . 3
|
| 32 | csbcog 2547 |
. . . 4
| |
| 33 | 32 | imaeq2d 4264 |
. . 3
|
| 34 | 31, 33 | eqtrd 1925 |
. 2
|
| 35 | 28, 29, 34 | 3eqtr3d 1934 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-5 1302 ax-7 1304 ax-gen 1305 ax-8 1306 ax-9 1307 ax-10 1308 ax-11 1309 ax-12 1310 ax-14 1312 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 ax-sep 3438 ax-nul 3445 ax-pow 3481 ax-pr 3524 |
| This theorem depends on definitions: df-bi 164 df-or 241 df-an 242 df-3an 860 df-ex 1327 df-sb 1536 df-eu 1775 df-mo 1776 df-clab 1872 df-cleq 1877 df-clel 1880 df-ne 2019 df-v 2294 df-sbc 2454 df-csb 2541 df-dif 2597 df-un 2600 df-in 2603 df-ss 2605 df-nul 2876 df-pw 3035 df-sn 3049 df-pr 3050 df-op 3053 df-br 3339 df-opab 3396 df-xp 4000 df-cnv 4002 df-dm 4004 df-rn 4005 df-res 4006 df-ima 4007 |