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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1fn 5288 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
2 | fvelimab 5431 |
. . . 4
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3 | 1, 2 | sylan 279 |
. . 3
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4 | 3 | 3adant2 983 |
. 2
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5 | ssel 3057 |
. . . . . . . 8
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6 | 5 | impac 376 |
. . . . . . 7
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7 | f1fveq 5627 |
. . . . . . . . . . . 12
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8 | 7 | ancom2s 538 |
. . . . . . . . . . 11
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9 | 8 | biimpd 143 |
. . . . . . . . . 10
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10 | 9 | anassrs 395 |
. . . . . . . . 9
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11 | eleq1 2177 |
. . . . . . . . . 10
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12 | 11 | biimpcd 158 |
. . . . . . . . 9
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13 | 10, 12 | sylan9 404 |
. . . . . . . 8
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14 | 13 | anasss 394 |
. . . . . . 7
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15 | 6, 14 | sylan2 282 |
. . . . . 6
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16 | 15 | anassrs 395 |
. . . . 5
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17 | 16 | rexlimdva 2523 |
. . . 4
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18 | 17 | 3impa 1159 |
. . 3
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19 | eqid 2115 |
. . . 4
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20 | fveq2 5375 |
. . . . . 6
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21 | 20 | eqeq1d 2123 |
. . . . 5
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22 | 21 | rspcev 2760 |
. . . 4
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23 | 19, 22 | mpan2 419 |
. . 3
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24 | 18, 23 | impbid1 141 |
. 2
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25 | 4, 24 | bitrd 187 |
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 105 ax-ia2 106 ax-ia3 107 ax-io 681 ax-5 1406 ax-7 1407 ax-gen 1408 ax-ie1 1452 ax-ie2 1453 ax-8 1465 ax-10 1466 ax-11 1467 ax-i12 1468 ax-bndl 1469 ax-4 1470 ax-14 1475 ax-17 1489 ax-i9 1493 ax-ial 1497 ax-i5r 1498 ax-ext 2097 ax-sep 4006 ax-pow 4058 ax-pr 4091 |
This theorem depends on definitions: df-bi 116 df-3an 947 df-tru 1317 df-nf 1420 df-sb 1719 df-eu 1978 df-mo 1979 df-clab 2102 df-cleq 2108 df-clel 2111 df-nfc 2244 df-ral 2395 df-rex 2396 df-v 2659 df-sbc 2879 df-un 3041 df-in 3043 df-ss 3050 df-pw 3478 df-sn 3499 df-pr 3500 df-op 3502 df-uni 3703 df-br 3896 df-opab 3950 df-id 4175 df-xp 4505 df-rel 4506 df-cnv 4507 df-co 4508 df-dm 4509 df-rn 4510 df-res 4511 df-ima 4512 df-iota 5046 df-fun 5083 df-fn 5084 df-f 5085 df-f1 5086 df-fv 5089 |
This theorem is referenced by: f1imass 5629 iseqf1olemnab 10154 ctinfom 11786 |
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