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Theorem xpss 3236
Description: A cross product is included in the ordered pair universe. Exercise 3 of [TakeutiZaring] p. 25.
Assertion
Ref Expression
xpss (A × B) (V × V)

Proof of Theorem xpss
StepHypRef Expression
1 pm3.26 319 . . . 4 ((z = x, y (x A y B)) → z = x, y)
2119.22i2 1043 . . 3 (xy(z = x, y (x A y B)) → xy z = x, y)
3 elxp 3208 . . 3 (z (A × B) ↔ xy(z = x, y (x A y B)))
4 elvv 3234 . . 3 (z (V × V) ↔ xy z = x, y)
52, 3, 43imtr4 219 . 2 (z (A × B) → z (V × V))
65ssriv 2072 1 (A × B) (V × V)
Colors of variables: wff set class
Syntax hints:   wa 223   = wceq 958   wcel 960  wex 982  Vcvv 1814   wss 2050  cop 2415   × cxp 3174
This theorem is referenced by:  relxp 3261  relres 3393  dff2 3823  nvrel 8217  relded 10644  relcat 10665
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 964  ax-gen 965  ax-8 966  ax-10 968  ax-11 969  ax-12 970  ax-13 971  ax-14 972  ax-17 973  ax-4 975  ax-5o 977  ax-6o 980  ax-9o 1125  ax-10o 1142  ax-16 1212  ax-11o 1220  ax-ext 1462  ax-sep 2708  ax-pow 2748  ax-pr 2785
This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-ex 983  df-sb 1174  df-eu 1384  df-mo 1385  df-clab 1467  df-cleq 1472  df-clel 1475  df-ne 1590  df-v 1815  df-dif 2052  df-un 2053  df-in 2054  df-ss 2056  df-nul 2284  df-pw 2406  df-sn 2416  df-pr 2417  df-op 2420  df-opab 2672  df-xp 3190
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