Theorem rnexg 4942

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.)

Assertion

Ref	Expression
rnexg	⊢ (𝐴 ∈ 𝑉 → ran 𝐴 ∈ V)

Proof of Theorem rnexg

Step	Hyp	Ref	Expression
1		uniexg 4485	. 2 ⊢ (𝐴 ∈ 𝑉 → ∪ 𝐴 ∈ V)
2		uniexg 4485	. 2 ⊢ (∪ 𝐴 ∈ V → ∪ ∪ 𝐴 ∈ V)
3		ssun2 3336	. . . 4 ⊢ ran 𝐴 ⊆ (dom 𝐴 ∪ ran 𝐴)
4		dmrnssfld 4940	. . . 4 ⊢ (dom 𝐴 ∪ ran 𝐴) ⊆ ∪ ∪ 𝐴
5	3, 4	sstri 3201	. . 3 ⊢ ran 𝐴 ⊆ ∪ ∪ 𝐴
6		ssexg 4182	. . 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)

Syntax hints:   → wi 4   ∈ wcel 2175  Vcvv 2771   ∪ cun 3163   ⊆ wss 3165  ∪ cuni 3849  dom cdm 4674  ran crn 4675

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 710  ax-5 1469  ax-7 1470  ax-gen 1471  ax-ie1 1515  ax-ie2 1516  ax-8 1526  ax-10 1527  ax-11 1528  ax-i12 1529  ax-bndl 1531  ax-4 1532  ax-17 1548  ax-i9 1552  ax-ial 1556  ax-i5r 1557  ax-13 2177  ax-14 2178  ax-ext 2186  ax-sep 4161  ax-pow 4217  ax-pr 4252  ax-un 4479

This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1375  df-nf 1483  df-sb 1785  df-eu 2056  df-mo 2057  df-clab 2191  df-cleq 2197  df-clel 2200  df-nfc 2336  df-rex 2489  df-v 2773  df-un 3169  df-in 3171  df-ss 3178  df-pw 3617  df-sn 3638  df-pr 3639  df-op 3641  df-uni 3850  df-br 4044  df-opab 4105  df-cnv 4682  df-dm 4684  df-rn 4685

This theorem is referenced by:  rnex  4945  imaexg  5035  xpexr2m  5123  elxp4  5169  elxp5  5170  cnvexg  5219  coexg  5226  fvexg  5594  cofunexg  6193  funrnex  6198  abrexexg  6202  2ndvalg  6228  tposexg  6343  iunon  6369  fopwdom  6932  djuexb  7145  shftfvalg  11100  ovshftex  11101  restval  13048  ptex  13067  imasex  13108  txvalex  14697  txval  14698  blbas  14876  xmettxlem  14952  xmettx  14953