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Mirrors > Home > ILE Home > Th. List > rnexg | Unicode version |
Description: The range of a set is a set. Corollary 6.8(3) of [TakeutiZaring] p. 26. Similar to Lemma 3D of [Enderton] p. 41. (Contributed by NM, 31-Mar-1995.) |
Ref | Expression |
---|---|
rnexg |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | uniexg 4437 |
. 2
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2 | uniexg 4437 |
. 2
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3 | ssun2 3299 |
. . . 4
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4 | dmrnssfld 4887 |
. . . 4
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5 | 3, 4 | sstri 3164 |
. . 3
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6 | ssexg 4140 |
. . 3
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7 | 5, 6 | mpan 424 |
. 2
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8 | 1, 2, 7 | 3syl 17 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-sep 4119 ax-pow 4172 ax-pr 4207 ax-un 4431 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-rex 2461 df-v 2739 df-un 3133 df-in 3135 df-ss 3142 df-pw 3577 df-sn 3598 df-pr 3599 df-op 3601 df-uni 3809 df-br 4002 df-opab 4063 df-cnv 4632 df-dm 4634 df-rn 4635 |
This theorem is referenced by: rnex 4891 imaexg 4979 xpexr2m 5067 elxp4 5113 elxp5 5114 cnvexg 5163 coexg 5170 fvexg 5531 cofunexg 6105 funrnex 6110 abrexexg 6114 2ndvalg 6139 tposexg 6254 iunon 6280 fopwdom 6831 djuexb 7038 shftfvalg 10818 ovshftex 10819 restval 12680 txvalex 13536 txval 13537 blbas 13715 xmettxlem 13791 xmettx 13792 |
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