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Mirrors > Home > ILE Home > Th. List > dom2lem | Unicode version |
Description: A mapping (first hypothesis) that is one-to-one (second hypothesis) implies its domain is dominated by its codomain. (Contributed by NM, 24-Jul-2004.) |
Ref | Expression |
---|---|
dom2d.1 |
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dom2d.2 |
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Ref | Expression |
---|---|
dom2lem |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dom2d.1 |
. . . 4
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2 | 1 | ralrimiv 2433 |
. . 3
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3 | eqid 2081 |
. . . 4
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4 | 3 | fmpt 5340 |
. . 3
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5 | 2, 4 | sylib 120 |
. 2
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6 | 1 | imp 122 |
. . . . . . 7
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7 | 3 | fvmpt2 5275 |
. . . . . . . 8
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8 | 7 | adantll 459 |
. . . . . . 7
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9 | 6, 8 | mpdan 412 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
10 | 9 | adantrr 462 |
. . . . 5
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11 | nfv 1461 |
. . . . . . . 8
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12 | nffvmpt1 5206 |
. . . . . . . . 9
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13 | 12 | nfeq1 2228 |
. . . . . . . 8
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14 | 11, 13 | nfim 1504 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
15 | eleq1 2141 |
. . . . . . . . . 10
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
16 | 15 | anbi2d 451 |
. . . . . . . . 9
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17 | 16 | imbi1d 229 |
. . . . . . . 8
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18 | 15 | anbi1d 452 |
. . . . . . . . . . . 12
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19 | anidm 388 |
. . . . . . . . . . . 12
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
20 | 18, 19 | syl6bb 194 |
. . . . . . . . . . 11
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21 | 20 | anbi2d 451 |
. . . . . . . . . 10
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
22 | fveq2 5198 |
. . . . . . . . . . . . 13
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
23 | 22 | adantr 270 |
. . . . . . . . . . . 12
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24 | dom2d.2 |
. . . . . . . . . . . . . 14
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
25 | 24 | imp 122 |
. . . . . . . . . . . . 13
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
26 | 25 | biimparc 293 |
. . . . . . . . . . . 12
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27 | 23, 26 | eqeq12d 2095 |
. . . . . . . . . . 11
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28 | 27 | ex 113 |
. . . . . . . . . 10
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29 | 21, 28 | sylbird 168 |
. . . . . . . . 9
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30 | 29 | pm5.74d 180 |
. . . . . . . 8
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31 | 17, 30 | bitrd 186 |
. . . . . . 7
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32 | 14, 31, 9 | chvar 1680 |
. . . . . 6
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33 | 32 | adantrl 461 |
. . . . 5
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34 | 10, 33 | eqeq12d 2095 |
. . . 4
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35 | 25 | biimpd 142 |
. . . 4
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36 | 34, 35 | sylbid 148 |
. . 3
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37 | 36 | ralrimivva 2443 |
. 2
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38 | nfmpt1 3871 |
. . 3
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39 | nfcv 2219 |
. . 3
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40 | 38, 39 | dff13f 5430 |
. 2
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41 | 5, 37, 40 | sylanbrc 408 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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-rab 2357 df-v 2603 df-sbc 2816 df-csb 2909 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-mpt 3841 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: dom2d 6276 dom3d 6277 |
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