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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 1502 |
. . . . . . 7
| |
| 2 | visset 1350 |
. . . . . . . . 9
| |
| 3 | 2 | opeldm 2534 |
. . . . . . . 8
|
| 4 | 3 | a1i 7 |
. . . . . . 7
|
| 5 | 1, 4 | jcad 455 |
. . . . . 6
|
| 6 | 5 | adantl 305 |
. . . . 5
|
| 7 | eupick 1055 |
. . . . . . . . . . . 12
| |
| 8 | funeu2 2686 |
. . . . . . . . . . . 12
| |
| 9 | 1 | ancrd 247 |
. . . . . . . . . . . . . . 15
|
| 10 | 9 | 19.22dv 947 |
. . . . . . . . . . . . . 14
|
| 11 | 2 | eldm2 2528 |
. . . . . . . . . . . . . 14
|
| 12 | 10, 11 | syl5ib 181 |
. . . . . . . . . . . . 13
|
| 13 | 12 | imp 277 |
. . . . . . . . . . . 12
|
| 14 | 7, 8, 13 | syl2an 349 |
. . . . . . . . . . 11
|
| 15 | 14 | exp43 301 |
. . . . . . . . . 10
|
| 16 | 15 | com23 32 |
. . . . . . . . 9
|
| 17 | 16 | imp 277 |
. . . . . . . 8
|
| 18 | 17 | com34 36 |
. . . . . . 7
|
| 19 | 18 | pm2.43d 59 |
. . . . . 6
|
| 20 | 19 | imp3a 279 |
. . . . 5
|
| 21 | 6, 20 | impbid 397 |
. . . 4
|
| 22 | visset 1350 |
. . . . 5
| |
| 23 | 22 | opelres 2579 |
. . . 4
|
| 24 | 21, 23 | syl6rbbr 417 |
. . 3
|
| 25 | 24 | 19.21aivv 944 |
. 2
|
| 26 | ssrel 2479 |
. . . . . . 7
| |
| 27 | funrel 2681 |
. . . . . . 7
| |
| 28 | 26, 27 | syl5 22 |
. . . . . 6
|
| 29 | 28 | com12 13 |
. . . . 5
|
| 30 | 29 | imp 277 |
. . . 4
|
| 31 | relres 2591 |
. . . 4
| |
| 32 | 30, 31 | jctil 240 |
. . 3
|
| 33 | cleqrel 2483 |
. . 3
| |
| 34 | 32, 33 | syl 12 |
. 2
|
| 35 | 25, 34 | mpbird 171 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: fun2ssres 2699 funcnvres 2710 funssfv 2841 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-pow 1077 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-v 1349 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-nul 1708 df-pw 1799 df-sn 1811 df-pr 1812 df-op 1815 df-br 2063 df-opab 2098 df-id 2125 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-res 2430 df-fun 2432 |