Theorem elrn 5398

Description: Membership in a range. (Contributed by NM, 2-Apr-2004.)

Hypothesis

Ref	Expression
elrn.1	⊢ 𝐴 ∈ V

Assertion

Ref	Expression
elrn	⊢ (𝐴 ∈ ran 𝐵 ↔ ∃𝑥 𝑥𝐵𝐴)

Distinct variable groups:   𝑥,𝐴   𝑥,𝐵

Proof of Theorem elrn

Step	Hyp	Ref	Expression
1		elrn.1	. . 3 ⊢ 𝐴 ∈ V
2	1	elrn2 5397	. 2 ⊢ (𝐴 ∈ ran 𝐵 ↔ ∃𝑥⟨𝑥, 𝐴⟩ ∈ 𝐵)
3		df-br 4686	. . 3 ⊢ (𝑥𝐵𝐴 ↔ ⟨𝑥, 𝐴⟩ ∈ 𝐵)
4	3	exbii 1814	. 2 ⊢ (∃𝑥 𝑥𝐵𝐴 ↔ ∃𝑥⟨𝑥, 𝐴⟩ ∈ 𝐵)
5	2, 4	bitr4i 267	1 ⊢ (𝐴 ∈ ran 𝐵 ↔ ∃𝑥 𝑥𝐵𝐴)

Syntax hints:   ↔ wb 196  ∃wex 1744   ∈ wcel 2030  Vcvv 3231  ⟨cop 4216   class class class wbr 4685  ran crn 5144

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-sep 4814  ax-nul 4822  ax-pr 4936

This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3an 1056  df-tru 1526  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-rab 2950  df-v 3233  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-nul 3949  df-if 4120  df-sn 4211  df-pr 4213  df-op 4217  df-br 4686  df-opab 4746  df-cnv 5151  df-dm 5153  df-rn 5154

This theorem is referenced by:  dmcosseq  5419  inisegn0  5532  rnco  5679  dffo4  6415  fvclss  6540  rntpos  7410  fpwwe2lem11  9500  fpwwe2lem12  9501  fclim  14328  perfdvf  23712  dftr6  31766  dffr5  31769  brsset  32121  dfon3  32124  brtxpsd  32126  dffix2  32137  elsingles  32150  dfrdg4  32183  undmrnresiss  38227