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Theorem elixp 8845
Description: Membership in an infinite Cartesian product. (Contributed by NM, 28-Sep-2006.)
Hypothesis
Ref Expression
elixp.1 𝐹 ∈ V
Assertion
Ref Expression
elixp (𝐹X𝑥𝐴 𝐵 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵))
Distinct variable groups:   𝑥,𝐹   𝑥,𝐴
Allowed substitution hint:   𝐵(𝑥)

Proof of Theorem elixp
StepHypRef Expression
1 elixp2 8842 . 2 (𝐹X𝑥𝐴 𝐵 ↔ (𝐹 ∈ V ∧ 𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵))
2 elixp.1 . . 3 𝐹 ∈ V
3 3anass 1095 . . 3 ((𝐹 ∈ V ∧ 𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵) ↔ (𝐹 ∈ V ∧ (𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵)))
42, 3mpbiran 710 . 2 ((𝐹 ∈ V ∧ 𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵) ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵))
51, 4bitri 275 1 (𝐹X𝑥𝐴 𝐵 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵))
Colors of variables: wff setvar class
Syntax hints:  wb 206  wa 395  w3a 1087  wcel 2114  wral 3052  Vcvv 3430   Fn wfn 6487  cfv 6492  Xcixp 8838
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-ext 2709
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-sb 2069  df-clab 2716  df-cleq 2729  df-clel 2812  df-ral 3053  df-rab 3391  df-v 3432  df-dif 3893  df-un 3895  df-ss 3907  df-nul 4275  df-if 4468  df-sn 4569  df-pr 4571  df-op 4575  df-uni 4852  df-br 5087  df-opab 5149  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-iota 6448  df-fun 6494  df-fn 6495  df-fv 6500  df-ixp 8839
This theorem is referenced by:  elixpconst  8846  ixpin  8864  ixpiin  8865  resixpfo  8877  elixpsn  8878  boxriin  8881  boxcutc  8882  ixpfi2  9253  ixpiunwdom  9498  dfac9  10050  ac9  10396  ac9s  10406  konigthlem  10482  cofucl  17846  yonedalem3  18237  psrbaglefi  21916  ptpjpre1  23546  ptpjcn  23586  ptpjopn  23587  ptclsg  23590  dfac14  23593  pthaus  23613  xkopt  23630  ptcmplem2  24028  ptcmplem3  24029  ptcmplem4  24030  prdsbl  24466  prdsxmslem2  24504  eulerpartlemb  34528  ptpconn  35431  finixpnum  37940  ptrest  37954  poimirlem29  37984  poimirlem30  37985  inixp  38063  prdstotbnd  38129  ioorrnopnlem  46750  hoicvr  46994  hoidmvlelem3  47043  hspdifhsp  47062  hspmbllem2  47073
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