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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 4221 |
. 2
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2 | uniexg 4221 |
. 2
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3 | ssun2 3146 |
. . . 4
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4 | dmrnssfld 4643 |
. . . 4
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5 | 3, 4 | sstri 3017 |
. . 3
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6 | ssexg 3937 |
. . 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 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-13 1445 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 ax-sep 3916 ax-pow 3968 ax-pr 3992 ax-un 4216 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-rex 2359 df-v 2612 df-un 2986 df-in 2988 df-ss 2995 df-pw 3402 df-sn 3422 df-pr 3423 df-op 3425 df-uni 3622 df-br 3806 df-opab 3860 df-cnv 4399 df-dm 4401 df-rn 4402 |
This theorem is referenced by: rnex 4647 imaexg 4730 xpexr2m 4812 elxp4 4858 elxp5 4859 cnvexg 4905 coexg 4912 fvexg 5246 cofunexg 5790 funrnex 5793 abrexexg 5797 2ndvalg 5822 tposexg 5928 iunon 5954 fopwdom 6402 focdmex 9881 shftfvalg 9925 ovshftex 9926 |
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