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Mirrors > Home > ILE Home > Th. List > f1elima | Unicode version |
Description: Membership in the image of a 1-1 map. (Contributed by Jeff Madsen, 2-Sep-2009.) |
Ref | Expression |
---|---|
f1elima |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1fn 5113 | . . . 4 | |
2 | fvelimab 5250 | . . . 4 | |
3 | 1, 2 | sylan 277 | . . 3 |
4 | 3 | 3adant2 957 | . 2 |
5 | ssel 2993 | . . . . . . . 8 | |
6 | 5 | impac 373 | . . . . . . 7 |
7 | f1fveq 5432 | . . . . . . . . . . . 12 | |
8 | 7 | ancom2s 530 | . . . . . . . . . . 11 |
9 | 8 | biimpd 142 | . . . . . . . . . 10 |
10 | 9 | anassrs 392 | . . . . . . . . 9 |
11 | eleq1 2141 | . . . . . . . . . 10 | |
12 | 11 | biimpcd 157 | . . . . . . . . 9 |
13 | 10, 12 | sylan9 401 | . . . . . . . 8 |
14 | 13 | anasss 391 | . . . . . . 7 |
15 | 6, 14 | sylan2 280 | . . . . . 6 |
16 | 15 | anassrs 392 | . . . . 5 |
17 | 16 | rexlimdva 2477 | . . . 4 |
18 | 17 | 3impa 1133 | . . 3 |
19 | eqid 2081 | . . . 4 | |
20 | fveq2 5198 | . . . . . 6 | |
21 | 20 | eqeq1d 2089 | . . . . 5 |
22 | 21 | rspcev 2701 | . . . 4 |
23 | 19, 22 | mpan2 415 | . . 3 |
24 | 18, 23 | impbid1 140 | . 2 |
25 | 4, 24 | bitrd 186 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 102 wb 103 w3a 919 wceq 1284 wcel 1433 wrex 2349 wss 2973 cima 4366 wfn 4917 wf1 4919 cfv 4922 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-sbc 2816 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-uni 3602 df-br 3786 df-opab 3840 df-id 4048 df-xp 4369 df-rel 4370 df-cnv 4371 df-co 4372 df-dm 4373 df-rn 4374 df-res 4375 df-ima 4376 df-iota 4887 df-fun 4924 df-fn 4925 df-f 4926 df-f1 4927 df-fv 4930 |
This theorem is referenced by: f1imass 5434 |
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