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Mirrors > Home > ILE Home > Th. List > funssres | Unicode version |
Description: The restriction of a function to the domain of a subclass equals the subclass. (Contributed by NM, 15-Aug-1994.) |
Ref | Expression |
---|---|
funssres |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2763 |
. . . . 5
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2 | 1 | opelres 4947 |
. . . 4
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3 | ssel 3173 |
. . . . . . 7
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4 | vex 2763 |
. . . . . . . . 9
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5 | 4, 1 | opeldm 4865 |
. . . . . . . 8
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6 | 5 | a1i 9 |
. . . . . . 7
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7 | 3, 6 | jcad 307 |
. . . . . 6
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8 | 7 | adantl 277 |
. . . . 5
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9 | funeu2 5280 |
. . . . . . . . . . . 12
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10 | 4 | eldm2 4860 |
. . . . . . . . . . . . . 14
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11 | 3 | ancrd 326 |
. . . . . . . . . . . . . . 15
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12 | 11 | eximdv 1891 |
. . . . . . . . . . . . . 14
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13 | 10, 12 | biimtrid 152 |
. . . . . . . . . . . . 13
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14 | 13 | imp 124 |
. . . . . . . . . . . 12
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15 | eupick 2121 |
. . . . . . . . . . . 12
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16 | 9, 14, 15 | syl2an 289 |
. . . . . . . . . . 11
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17 | 16 | exp43 372 |
. . . . . . . . . 10
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18 | 17 | com23 78 |
. . . . . . . . 9
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19 | 18 | imp 124 |
. . . . . . . 8
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20 | 19 | com34 83 |
. . . . . . 7
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21 | 20 | pm2.43d 50 |
. . . . . 6
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22 | 21 | impd 254 |
. . . . 5
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23 | 8, 22 | impbid 129 |
. . . 4
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24 | 2, 23 | bitr4id 199 |
. . 3
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25 | 24 | alrimivv 1886 |
. 2
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26 | relres 4970 |
. . 3
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27 | funrel 5271 |
. . . 4
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28 | relss 4746 |
. . . 4
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29 | 27, 28 | mpan9 281 |
. . 3
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30 | eqrel 4748 |
. . 3
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31 | 26, 29, 30 | sylancr 414 |
. 2
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32 | 25, 31 | mpbird 167 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3157 df-in 3159 df-ss 3166 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-br 4030 df-opab 4091 df-id 4324 df-xp 4665 df-rel 4666 df-cnv 4667 df-co 4668 df-dm 4669 df-res 4671 df-fun 5256 |
This theorem is referenced by: fun2ssres 5297 funcnvres 5327 funssfv 5580 oprssov 6060 |
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