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Mirrors > Home > ILE Home > Th. List > releldm2 | Unicode version |
Description: Two ways of expressing membership in the domain of a relation. (Contributed by NM, 22-Sep-2013.) |
Ref | Expression |
---|---|
releldm2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 2560 |
. . 3
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2 | 1 | anim2i 324 |
. 2
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3 | id 19 |
. . . . 5
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4 | vex 2554 |
. . . . . 6
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5 | 1stexg 5736 |
. . . . . 6
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6 | 4, 5 | ax-mp 7 |
. . . . 5
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7 | 3, 6 | syl6eqelr 2126 |
. . . 4
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8 | 7 | rexlimivw 2423 |
. . 3
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9 | 8 | anim2i 324 |
. 2
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10 | eldm2g 4474 |
. . . 4
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11 | 10 | adantl 262 |
. . 3
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12 | df-rel 4295 |
. . . . . . . . 9
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13 | ssel 2933 |
. . . . . . . . 9
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14 | 12, 13 | sylbi 114 |
. . . . . . . 8
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15 | 14 | imp 115 |
. . . . . . 7
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16 | op1steq 5747 |
. . . . . . 7
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17 | 15, 16 | syl 14 |
. . . . . 6
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18 | 17 | rexbidva 2317 |
. . . . 5
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19 | 18 | adantr 261 |
. . . 4
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20 | rexcom4 2571 |
. . . . 5
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21 | risset 2346 |
. . . . . 6
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22 | 21 | exbii 1493 |
. . . . 5
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23 | 20, 22 | bitr4i 176 |
. . . 4
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24 | 19, 23 | syl6bb 185 |
. . 3
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25 | 11, 24 | bitr4d 180 |
. 2
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26 | 2, 9, 25 | pm5.21nd 824 |
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 99 ax-ia2 100 ax-ia3 101 ax-io 629 ax-5 1333 ax-7 1334 ax-gen 1335 ax-ie1 1379 ax-ie2 1380 ax-8 1392 ax-10 1393 ax-11 1394 ax-i12 1395 ax-bndl 1396 ax-4 1397 ax-13 1401 ax-14 1402 ax-17 1416 ax-i9 1420 ax-ial 1424 ax-i5r 1425 ax-ext 2019 ax-sep 3866 ax-pow 3918 ax-pr 3935 ax-un 4136 |
This theorem depends on definitions: df-bi 110 df-3an 886 df-tru 1245 df-nf 1347 df-sb 1643 df-eu 1900 df-mo 1901 df-clab 2024 df-cleq 2030 df-clel 2033 df-nfc 2164 df-ral 2305 df-rex 2306 df-v 2553 df-sbc 2759 df-un 2916 df-in 2918 df-ss 2925 df-pw 3353 df-sn 3373 df-pr 3374 df-op 3376 df-uni 3572 df-br 3756 df-opab 3810 df-mpt 3811 df-id 4021 df-xp 4294 df-rel 4295 df-cnv 4296 df-co 4297 df-dm 4298 df-rn 4299 df-iota 4810 df-fun 4847 df-fn 4848 df-f 4849 df-fo 4851 df-fv 4853 df-1st 5709 df-2nd 5710 |
This theorem is referenced by: reldm 5754 |
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