MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  xpsff1o2 Structured version   Visualization version   GIF version

Theorem xpsff1o2 17629
Description: The function appearing in xpsval 17630 is a bijection from the cartesian product to the indexed cartesian product indexed on the pair 2o = {∅, 1o}. (Contributed by Mario Carneiro, 24-Jan-2015.)
Hypothesis
Ref Expression
xpsff1o.f 𝐹 = (𝑥𝐴, 𝑦𝐵 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})
Assertion
Ref Expression
xpsff1o2 𝐹:(𝐴 × 𝐵)–1-1-onto→ran 𝐹
Distinct variable groups:   𝑥,𝐴,𝑦   𝑥,𝐵,𝑦
Allowed substitution hints:   𝐹(𝑥,𝑦)

Proof of Theorem xpsff1o2
Dummy variable 𝑘 is distinct from all other variables.
StepHypRef Expression
1 xpsff1o.f . . 3 𝐹 = (𝑥𝐴, 𝑦𝐵 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})
21xpsff1o 17627 . 2 𝐹:(𝐴 × 𝐵)–1-1-ontoX𝑘 ∈ 2o if(𝑘 = ∅, 𝐴, 𝐵)
3 f1of1 6861 . 2 (𝐹:(𝐴 × 𝐵)–1-1-ontoX𝑘 ∈ 2o if(𝑘 = ∅, 𝐴, 𝐵) → 𝐹:(𝐴 × 𝐵)–1-1X𝑘 ∈ 2o if(𝑘 = ∅, 𝐴, 𝐵))
4 f1f1orn 6873 . 2 (𝐹:(𝐴 × 𝐵)–1-1X𝑘 ∈ 2o if(𝑘 = ∅, 𝐴, 𝐵) → 𝐹:(𝐴 × 𝐵)–1-1-onto→ran 𝐹)
52, 3, 4mp2b 10 1 𝐹:(𝐴 × 𝐵)–1-1-onto→ran 𝐹
Colors of variables: wff setvar class
Syntax hints:   = wceq 1537  c0 4352  ifcif 4548  {cpr 4650  cop 4654   × cxp 5698  ran crn 5701  1-1wf1 6570  1-1-ontowf1o 6572  cmpo 7450  1oc1o 8515  2oc2o 8516  Xcixp 8955
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1793  ax-4 1807  ax-5 1909  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2158  ax-12 2178  ax-ext 2711  ax-sep 5317  ax-nul 5324  ax-pr 5447  ax-un 7770
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 847  df-3or 1088  df-3an 1089  df-tru 1540  df-fal 1550  df-ex 1778  df-nf 1782  df-sb 2065  df-mo 2543  df-eu 2572  df-clab 2718  df-cleq 2732  df-clel 2819  df-nfc 2895  df-ne 2947  df-ral 3068  df-rex 3077  df-reu 3389  df-rab 3444  df-v 3490  df-sbc 3805  df-csb 3922  df-dif 3979  df-un 3981  df-in 3983  df-ss 3993  df-pss 3996  df-nul 4353  df-if 4549  df-pw 4624  df-sn 4649  df-pr 4651  df-op 4655  df-uni 4932  df-iun 5017  df-br 5167  df-opab 5229  df-mpt 5250  df-tr 5284  df-id 5593  df-eprel 5599  df-po 5607  df-so 5608  df-fr 5652  df-we 5654  df-xp 5706  df-rel 5707  df-cnv 5708  df-co 5709  df-dm 5710  df-rn 5711  df-res 5712  df-ima 5713  df-ord 6398  df-on 6399  df-lim 6400  df-suc 6401  df-iota 6525  df-fun 6575  df-fn 6576  df-f 6577  df-f1 6578  df-fo 6579  df-f1o 6580  df-fv 6581  df-ov 7451  df-oprab 7452  df-mpo 7453  df-om 7904  df-1st 8030  df-2nd 8031  df-1o 8522  df-2o 8523  df-ixp 8956  df-en 9004  df-fin 9007
This theorem is referenced by:  xpsbas  17632  xpsaddlem  17633  xpsadd  17634  xpsmul  17635  xpssca  17636  xpsvsca  17637  xpsless  17638  xpsle  17639  xpsmnd  18812  xpsgrp  19099  xpsrngd  20206  xpsringd  20355  xpstps  23839  xpstopnlem2  23840  xpsdsfn  24408  xpsxmet  24411  xpsdsval  24412  xpsmet  24413  xpsxms  24568  xpsms  24569
  Copyright terms: Public domain W3C validator