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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 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relres 5041 |
. . . . 5
| |
| 2 | elrel 4828 |
. . . . 5
| |
| 3 | 1, 2 | mpan 424 |
. . . 4
|
| 4 | eleq1 2294 |
. . . . . . . . 9
| |
| 5 | 4 | biimpd 144 |
. . . . . . . 8
|
| 6 | vex 2805 |
. . . . . . . . . . 11
| |
| 7 | 6 | opelres 5018 |
. . . . . . . . . 10
|
| 8 | 7 | biimpi 120 |
. . . . . . . . 9
|
| 9 | 8 | ancomd 267 |
. . . . . . . 8
|
| 10 | 5, 9 | syl6com 35 |
. . . . . . 7
|
| 11 | 10 | ancld 325 |
. . . . . 6
|
| 12 | an12 563 |
. . . . . 6
| |
| 13 | 11, 12 | imbitrdi 161 |
. . . . 5
|
| 14 | 13 | 2eximdv 1930 |
. . . 4
|
| 15 | 3, 14 | mpd 13 |
. . 3
|
| 16 | rexcom4 2826 |
. . . 4
| |
| 17 | df-rex 2516 |
. . . . 5
| |
| 18 | 17 | exbii 1653 |
. . . 4
|
| 19 | excom 1712 |
. . . 4
| |
| 20 | 16, 18, 19 | 3bitri 206 |
. . 3
|
| 21 | 15, 20 | sylibr 134 |
. 2
|
| 22 | 7 | simplbi2com 1489 |
. . . . . 6
|
| 23 | 4 | biimprd 158 |
. . . . . 6
|
| 24 | 22, 23 | syl9 72 |
. . . . 5
|
| 25 | 24 | impd 254 |
. . . 4
|
| 26 | 25 | exlimdv 1867 |
. . 3
|
| 27 | 26 | rexlimiv 2644 |
. 2
|
| 28 | 21, 27 | impbii 126 |
1
|
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-opab 4151 df-xp 4731 df-rel 4732 df-res 4737 |
| This theorem is referenced by: elsnres 5050 |
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