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Mirrors > Home > ILE Home > Th. List > f1stres | Unicode version |
Description: Mapping of a restriction
of the ![]() |
Ref | Expression |
---|---|
f1stres |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2604 |
. . . . . . . 8
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2 | vex 2604 |
. . . . . . . 8
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3 | 1, 2 | op1sta 4822 |
. . . . . . 7
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4 | 3 | eleq1i 2144 |
. . . . . 6
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5 | 4 | biimpri 131 |
. . . . 5
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6 | 5 | adantr 270 |
. . . 4
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7 | 6 | rgen2 2447 |
. . 3
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8 | sneq 3409 |
. . . . . . 7
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9 | 8 | dmeqd 4555 |
. . . . . 6
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10 | 9 | unieqd 3612 |
. . . . 5
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11 | 10 | eleq1d 2147 |
. . . 4
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12 | 11 | ralxp 4497 |
. . 3
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13 | 7, 12 | mpbir 144 |
. 2
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14 | df-1st 5787 |
. . . . 5
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15 | 14 | reseq1i 4626 |
. . . 4
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16 | ssv 3019 |
. . . . 5
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17 | resmpt 4676 |
. . . . 5
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18 | 16, 17 | ax-mp 7 |
. . . 4
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19 | 15, 18 | eqtri 2101 |
. . 3
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20 | 19 | fmpt 5340 |
. 2
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21 | 13, 20 | mpbi 143 |
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-iun 3680 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-fv 4930 df-1st 5787 |
This theorem is referenced by: fo1stresm 5808 1stcof 5810 |
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