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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 4565 | . 2 ⊢ (𝐴 ∈ 𝑉 → ∪ 𝐴 ∈ V) | |
| 2 | uniexg 4565 | . 2 ⊢ (∪ 𝐴 ∈ V → ∪ ∪ 𝐴 ∈ V) | |
| 3 | ssun2 3387 | . . . 4 ⊢ ran 𝐴 ⊆ (dom 𝐴 ∪ ran 𝐴) | |
| 4 | dmrnssfld 5025 | . . . 4 ⊢ (dom 𝐴 ∪ ran 𝐴) ⊆ ∪ ∪ 𝐴 | |
| 5 | 3, 4 | sstri 3251 | . . 3 ⊢ ran 𝐴 ⊆ ∪ ∪ 𝐴 |
| 6 | ssexg 4254 | . . 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 2205 Vcvv 2815 ∪ cun 3212 ⊆ wss 3214 ∪ cuni 3919 dom cdm 4754 ran crn 4755 |
| 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 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-rex 2528 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-cnv 4762 df-dm 4764 df-rn 4765 |
| This theorem is referenced by: rnex 5030 imaexg 5120 xpexr2m 5209 elxp4 5255 elxp5 5256 cnvexg 5305 coexg 5312 fvexg 5694 cofunexg 6311 funrnex 6316 abrexexg 6320 2ndvalg 6350 tposexg 6502 iunon 6528 fopwdom 7102 djuexb 7348 shftfvalg 11528 ovshftex 11529 restval 13542 ptex 13561 imasex 13569 txvalex 15245 txval 15246 blbas 15424 xmettxlem 15500 xmettx 15501 edgvalg 16180 edgopval 16183 edgstruct 16185 usgrausgrien 16290 ausgrumgrien 16291 ausgrusgrien 16292 |
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