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

Theorem xpsn 7052
Description: The Cartesian product of two singletons is the singleton consisting in the associated ordered pair. (Contributed by NM, 4-Nov-2006.)
Hypotheses
Ref Expression
xpsn.1 𝐴 ∈ V
xpsn.2 𝐵 ∈ V
Assertion
Ref Expression
xpsn ({𝐴} × {𝐵}) = {⟨𝐴, 𝐵⟩}

Proof of Theorem xpsn
StepHypRef Expression
1 xpsn.1 . 2 𝐴 ∈ V
2 xpsn.2 . 2 𝐵 ∈ V
3 xpsng 7050 . 2 ((𝐴 ∈ V ∧ 𝐵 ∈ V) → ({𝐴} × {𝐵}) = {⟨𝐴, 𝐵⟩})
41, 2, 3mp2an 689 1 ({𝐴} × {𝐵}) = {⟨𝐴, 𝐵⟩}
Colors of variables: wff setvar class
Syntax hints:   = wceq 1540  wcel 2105  Vcvv 3441  {csn 4571  cop 4577   × cxp 5605
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1912  ax-6 1970  ax-7 2010  ax-8 2107  ax-9 2115  ax-10 2136  ax-11 2153  ax-12 2170  ax-ext 2708  ax-sep 5238  ax-nul 5245  ax-pr 5367
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1781  df-nf 1785  df-sb 2067  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2729  df-clel 2815  df-nfc 2887  df-ne 2942  df-ral 3063  df-rex 3072  df-reu 3351  df-rab 3405  df-v 3443  df-dif 3900  df-un 3902  df-in 3904  df-ss 3914  df-nul 4268  df-if 4472  df-sn 4572  df-pr 4574  df-op 4578  df-br 5088  df-opab 5150  df-mpt 5171  df-id 5507  df-xp 5613  df-rel 5614  df-cnv 5615  df-co 5616  df-dm 5617  df-rn 5618  df-fun 6467  df-fn 6468  df-f 6469  df-f1 6470  df-fo 6471  df-f1o 6472
This theorem is referenced by:  dfmpt  7055  fpar  8001  mapsnconst  8728  ixpsnf1o  8774  dju1dif  10001  infdju1  10018  s1co  14618  mat1f1o  21699  txdis  22855  pt1hmeo  23029  utop2nei  23474  utop3cls  23475  imasdsf1olem  23598  ex-xp  28909  poimirlem3  35836  poimirlem4  35837  poimirlem9  35842  poimirlem28  35861  grposnOLD  36096  dib0  39383
  Copyright terms: Public domain W3C validator