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Mirrors > Home > ILE Home > Th. List > elres | Unicode version |
Description: Membership in a restriction. (Contributed by Scott Fenton, 17-Mar-2011.) |
Ref | Expression |
---|---|
elres |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relres 4970 |
. . . . 5
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2 | elrel 4761 |
. . . . 5
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3 | 1, 2 | mpan 424 |
. . . 4
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4 | eleq1 2256 |
. . . . . . . . 9
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5 | 4 | biimpd 144 |
. . . . . . . 8
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6 | vex 2763 |
. . . . . . . . . . 11
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7 | 6 | opelres 4947 |
. . . . . . . . . 10
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8 | 7 | biimpi 120 |
. . . . . . . . 9
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9 | 8 | ancomd 267 |
. . . . . . . 8
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10 | 5, 9 | syl6com 35 |
. . . . . . 7
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11 | 10 | ancld 325 |
. . . . . 6
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12 | an12 561 |
. . . . . 6
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13 | 11, 12 | imbitrdi 161 |
. . . . 5
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14 | 13 | 2eximdv 1893 |
. . . 4
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15 | 3, 14 | mpd 13 |
. . 3
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16 | rexcom4 2783 |
. . . 4
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17 | df-rex 2478 |
. . . . 5
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18 | 17 | exbii 1616 |
. . . 4
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19 | excom 1675 |
. . . 4
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20 | 16, 18, 19 | 3bitri 206 |
. . 3
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21 | 15, 20 | sylibr 134 |
. 2
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22 | 7 | simplbi2com 1455 |
. . . . . 6
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23 | 4 | biimprd 158 |
. . . . . 6
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24 | 22, 23 | syl9 72 |
. . . . 5
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25 | 24 | impd 254 |
. . . 4
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26 | 25 | exlimdv 1830 |
. . 3
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27 | 26 | rexlimiv 2605 |
. 2
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28 | 21, 27 | impbii 126 |
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-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-opab 4091 df-xp 4665 df-rel 4666 df-res 4671 |
This theorem is referenced by: elsnres 4979 |
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