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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 4265 |
. 2
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2 | uniexg 4265 |
. 2
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3 | ssun2 3164 |
. . . 4
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4 | dmrnssfld 4696 |
. . . 4
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5 | 3, 4 | sstri 3034 |
. . 3
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6 | ssexg 3978 |
. . 3
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7 | 5, 6 | mpan 415 |
. 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-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 665 ax-5 1381 ax-7 1382 ax-gen 1383 ax-ie1 1427 ax-ie2 1428 ax-8 1440 ax-10 1441 ax-11 1442 ax-i12 1443 ax-bndl 1444 ax-4 1445 ax-13 1449 ax-14 1450 ax-17 1464 ax-i9 1468 ax-ial 1472 ax-i5r 1473 ax-ext 2070 ax-sep 3957 ax-pow 4009 ax-pr 4036 ax-un 4260 |
This theorem depends on definitions: df-bi 115 df-3an 926 df-tru 1292 df-nf 1395 df-sb 1693 df-eu 1951 df-mo 1952 df-clab 2075 df-cleq 2081 df-clel 2084 df-nfc 2217 df-rex 2365 df-v 2621 df-un 3003 df-in 3005 df-ss 3012 df-pw 3431 df-sn 3452 df-pr 3453 df-op 3455 df-uni 3654 df-br 3846 df-opab 3900 df-cnv 4446 df-dm 4448 df-rn 4449 |
This theorem is referenced by: rnex 4700 imaexg 4786 xpexr2m 4872 elxp4 4918 elxp5 4919 cnvexg 4968 coexg 4975 fvexg 5324 cofunexg 5882 funrnex 5885 abrexexg 5889 2ndvalg 5914 tposexg 6023 iunon 6049 fopwdom 6552 focdmex 10195 shftfvalg 10252 ovshftex 10253 |
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