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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 4536 | . 2 ⊢ (𝐴 ∈ 𝑉 → ∪ 𝐴 ∈ V) | |
| 2 | uniexg 4536 | . 2 ⊢ (∪ 𝐴 ∈ V → ∪ ∪ 𝐴 ∈ V) | |
| 3 | ssun2 3371 | . . . 4 ⊢ ran 𝐴 ⊆ (dom 𝐴 ∪ ran 𝐴) | |
| 4 | dmrnssfld 4995 | . . . 4 ⊢ (dom 𝐴 ∪ ran 𝐴) ⊆ ∪ ∪ 𝐴 | |
| 5 | 3, 4 | sstri 3236 | . . 3 ⊢ ran 𝐴 ⊆ ∪ ∪ 𝐴 |
| 6 | ssexg 4228 | . . 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 2802 ∪ cun 3198 ⊆ wss 3200 ∪ cuni 3893 dom cdm 4725 ran crn 4726 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-cnv 4733 df-dm 4735 df-rn 4736 |
| This theorem is referenced by: rnex 5000 imaexg 5090 xpexr2m 5178 elxp4 5224 elxp5 5225 cnvexg 5274 coexg 5281 fvexg 5658 cofunexg 6271 funrnex 6276 abrexexg 6280 2ndvalg 6306 tposexg 6424 iunon 6450 fopwdom 7022 djuexb 7243 shftfvalg 11383 ovshftex 11384 restval 13333 ptex 13352 imasex 13393 txvalex 14984 txval 14985 blbas 15163 xmettxlem 15239 xmettx 15240 edgvalg 15916 edgopval 15919 edgstruct 15921 usgrausgrien 16026 ausgrumgrien 16027 ausgrusgrien 16028 |
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