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| Mirrors > Home > ILE Home > Th. List > rnexg | GIF 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 | ⊢ (𝐴 ∈ 𝑉 → ran 𝐴 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uniexg 4542 | . 2 ⊢ (𝐴 ∈ 𝑉 → ∪ 𝐴 ∈ V) | |
| 2 | uniexg 4542 | . 2 ⊢ (∪ 𝐴 ∈ V → ∪ ∪ 𝐴 ∈ V) | |
| 3 | ssun2 3373 | . . . 4 ⊢ ran 𝐴 ⊆ (dom 𝐴 ∪ ran 𝐴) | |
| 4 | dmrnssfld 5001 | . . . 4 ⊢ (dom 𝐴 ∪ ran 𝐴) ⊆ ∪ ∪ 𝐴 | |
| 5 | 3, 4 | sstri 3237 | . . 3 ⊢ ran 𝐴 ⊆ ∪ ∪ 𝐴 |
| 6 | ssexg 4233 | . . 3 ⊢ ((ran 𝐴 ⊆ ∪ ∪ 𝐴 ∧ ∪ ∪ 𝐴 ∈ V) → ran 𝐴 ∈ V) | |
| 7 | 5, 6 | mpan 424 | . 2 ⊢ (∪ ∪ 𝐴 ∈ V → ran 𝐴 ∈ V) |
| 8 | 1, 2, 7 | 3syl 17 | 1 ⊢ (𝐴 ∈ 𝑉 → ran 𝐴 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 Vcvv 2803 ∪ cun 3199 ⊆ wss 3201 ∪ cuni 3898 dom cdm 4731 ran crn 4732 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-rex 2517 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-cnv 4739 df-dm 4741 df-rn 4742 |
| This theorem is referenced by: rnex 5006 imaexg 5096 xpexr2m 5185 elxp4 5231 elxp5 5232 cnvexg 5281 coexg 5288 fvexg 5667 cofunexg 6280 funrnex 6285 abrexexg 6289 2ndvalg 6315 tposexg 6467 iunon 6493 fopwdom 7065 djuexb 7286 shftfvalg 11441 ovshftex 11442 restval 13391 ptex 13410 imasex 13451 txvalex 15048 txval 15049 blbas 15227 xmettxlem 15303 xmettx 15304 edgvalg 15983 edgopval 15986 edgstruct 15988 usgrausgrien 16093 ausgrumgrien 16094 ausgrusgrien 16095 |
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