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Theorem rnxp 5564
Description: The range of a Cartesian product. Part of Theorem 3.13(x) of [Monk1] p. 37. (Contributed by NM, 12-Apr-2004.)
Assertion
Ref Expression
rnxp (𝐴 ≠ ∅ → ran (𝐴 × 𝐵) = 𝐵)

Proof of Theorem rnxp
StepHypRef Expression
1 df-rn 5125 . . 3 ran (𝐴 × 𝐵) = dom (𝐴 × 𝐵)
2 cnvxp 5551 . . . 4 (𝐴 × 𝐵) = (𝐵 × 𝐴)
32dmeqi 5325 . . 3 dom (𝐴 × 𝐵) = dom (𝐵 × 𝐴)
41, 3eqtri 2644 . 2 ran (𝐴 × 𝐵) = dom (𝐵 × 𝐴)
5 dmxp 5344 . 2 (𝐴 ≠ ∅ → dom (𝐵 × 𝐴) = 𝐵)
64, 5syl5eq 2668 1 (𝐴 ≠ ∅ → ran (𝐴 × 𝐵) = 𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1483  wne 2794  c0 3915   × cxp 5112  ccnv 5113  dom cdm 5114  ran crn 5115
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pr 4906
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rab 2921  df-v 3202  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-sn 4178  df-pr 4180  df-op 4184  df-br 4654  df-opab 4713  df-xp 5120  df-rel 5121  df-cnv 5122  df-dm 5124  df-rn 5125
This theorem is referenced by:  rnxpid  5567  ssxpb  5568  xpima  5576  unixp  5668  fconst5  6471  xpexr  7106  xpexr2  7107  fparlem3  7279  fparlem4  7280  frxp  7287  fodomr  8111  dfac5lem3  8948  fpwwe2lem13  9464  vdwlem8  15692  ramz  15729  gsumxp  18375  xkoccn  21422  txindislem  21436  cnextf  21870  metustexhalf  22361  ovolctb  23258  axlowdimlem13  25834  axlowdim1  25839  imadifxp  29414  sibf0  30396  ovoliunnfl  33451  voliunnfl  33453
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