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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 2107 |
. . . . . . 7
| |
| 2 | visset 1851 |
. . . . . . . . 9
| |
| 3 | 2 | opeldm 3378 |
. . . . . . . 8
|
| 4 | 3 | a1i 8 |
. . . . . . 7
|
| 5 | 1, 4 | jcad 602 |
. . . . . 6
|
| 6 | 5 | adantl 388 |
. . . . 5
|
| 7 | eupick 1467 |
. . . . . . . . . . . 12
| |
| 8 | funeu2 3613 |
. . . . . . . . . . . 12
| |
| 9 | 1 | ancrd 297 |
. . . . . . . . . . . . . . 15
|
| 10 | 9 | 19.22dv 1323 |
. . . . . . . . . . . . . 14
|
| 11 | 2 | eldm2 3372 |
. . . . . . . . . . . . . 14
|
| 12 | 10, 11 | syl5ib 204 |
. . . . . . . . . . . . 13
|
| 13 | 12 | imp 348 |
. . . . . . . . . . . 12
|
| 14 | 7, 8, 13 | syl2an 456 |
. . . . . . . . . . 11
|
| 15 | 14 | exp43 384 |
. . . . . . . . . 10
|
| 16 | 15 | com23 32 |
. . . . . . . . 9
|
| 17 | 16 | imp 348 |
. . . . . . . 8
|
| 18 | 17 | com34 36 |
. . . . . . 7
|
| 19 | 18 | pm2.43d 65 |
. . . . . 6
|
| 20 | 19 | imp3a 359 |
. . . . 5
|
| 21 | 6, 20 | impbid 518 |
. . . 4
|
| 22 | visset 1851 |
. . . . 5
| |
| 23 | 22 | opelres 3432 |
. . . 4
|
| 24 | 21, 23 | syl6rbbr 541 |
. . 3
|
| 25 | 24 | 19.21aivv 1320 |
. 2
|
| 26 | relss 3306 |
. . . . . 6
| |
| 27 | funrel 3608 |
. . . . . 6
| |
| 28 | 26, 27 | syl5com 52 |
. . . . 5
|
| 29 | 28 | imp 348 |
. . . 4
|
| 30 | relres 3448 |
. . . 4
| |
| 31 | 29, 30 | jctil 290 |
. . 3
|
| 32 | eqrel 3308 |
. . 3
| |
| 33 | 31, 32 | syl 10 |
. 2
|
| 34 | 25, 33 | mpbird 194 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: fun2ssres 3628 funcnvres 3643 funssfv 3811 oprssoprval 4112 climuz0i 7231 dfef2i 7430 metcnss 8018 metcnss2 8019 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 994 ax-gen 995 ax-8 996 ax-10 998 ax-11 999 ax-12 1000 ax-13 1001 ax-14 1002 ax-17 1003 ax-4 1005 ax-5o 1007 ax-6o 1010 ax-9o 1155 ax-10o 1173 ax-16 1243 ax-11o 1251 ax-ext 1494 ax-sep 2754 ax-pow 2794 ax-pr 2832 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-ex 1013 df-sb 1205 df-eu 1415 df-mo 1416 df-clab 1500 df-cleq 1505 df-clel 1508 df-ne 1624 df-v 1850 df-dif 2093 df-un 2094 df-in 2095 df-ss 2097 df-nul 2325 df-pw 2447 df-sn 2457 df-pr 2458 df-op 2461 df-br 2670 df-opab 2718 df-id 2889 df-xp 3239 df-rel 3240 df-cnv 3241 df-co 3242 df-dm 3243 df-res 3245 df-fun 3247 |