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Related theorems Unicode version |
| Description: The restriction of a function to the domain of a subclass equals the subclass. |
| Ref | Expression |
|---|---|
| funssres |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssel 2053 |
. . . . . . 7
| |
| 2 | visset 1804 |
. . . . . . . . 9
| |
| 3 | 2 | opeldm 3303 |
. . . . . . . 8
|
| 4 | 3 | a1i 8 |
. . . . . . 7
|
| 5 | 1, 4 | jcad 598 |
. . . . . 6
|
| 6 | 5 | adantl 388 |
. . . . 5
|
| 7 | eupick 1427 |
. . . . . . . . . . . 12
| |
| 8 | funeu2 3524 |
. . . . . . . . . . . 12
| |
| 9 | 1 | ancrd 299 |
. . . . . . . . . . . . . . 15
|
| 10 | 9 | 19.22dv 1285 |
. . . . . . . . . . . . . 14
|
| 11 | 2 | eldm2 3297 |
. . . . . . . . . . . . . 14
|
| 12 | 10, 11 | syl5ib 206 |
. . . . . . . . . . . . 13
|
| 13 | 12 | imp 350 |
. . . . . . . . . . . 12
|
| 14 | 7, 8, 13 | syl2an 454 |
. . . . . . . . . . 11
|
| 15 | 14 | exp43 384 |
. . . . . . . . . 10
|
| 16 | 15 | com23 32 |
. . . . . . . . 9
|
| 17 | 16 | imp 350 |
. . . . . . . 8
|
| 18 | 17 | com34 36 |
. . . . . . 7
|
| 19 | 18 | pm2.43d 65 |
. . . . . 6
|
| 20 | 19 | imp3a 361 |
. . . . 5
|
| 21 | 6, 20 | impbid 514 |
. . . 4
|
| 22 | visset 1804 |
. . . . 5
| |
| 23 | 22 | opelres 3356 |
. . . 4
|
| 24 | 21, 23 | syl6rbbr 537 |
. . 3
|
| 25 | 24 | 19.21aivv 1282 |
. 2
|
| 26 | relss 3236 |
. . . . . 6
| |
| 27 | funrel 3519 |
. . . . . 6
| |
| 28 | 26, 27 | syl5com 52 |
. . . . 5
|
| 29 | 28 | imp 350 |
. . . 4
|
| 30 | relres 3371 |
. . . 4
| |
| 31 | 29, 30 | jctil 292 |
. . 3
|
| 32 | eqrel 3240 |
. . 3
| |
| 33 | 31, 32 | syl 10 |
. 2
|
| 34 | 25, 33 | mpbird 196 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: fun2ssres 3539 funcnvres 3554 funssfv 3720 oprssoprval 4019 climuz0 7045 dfef2 7249 metcnss 7837 metcnss2 7838 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-10 963 ax-11 964 ax-12 965 ax-13 966 ax-14 967 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 ax-sep 2693 ax-pow 2732 ax-pr 2769 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 978 df-sb 1168 df-eu 1375 df-mo 1376 df-clab 1457 df-cleq 1462 df-clel 1465 df-ne 1579 df-v 1803 df-dif 2039 df-un 2040 df-in 2041 df-ss 2043 df-nul 2271 df-pw 2392 df-sn 2402 df-pr 2403 df-op 2406 df-br 2610 df-opab 2657 df-id 2824 df-xp 3174 df-rel 3175 df-cnv 3176 df-co 3177 df-dm 3178 df-res 3180 df-fun 3182 |