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Theorem brxp 4803
Description: Binary relation on a cross product. (Contributed by NM, 22-Apr-2004.)
Assertion
Ref Expression
brxp (𝐴(𝐶 × 𝐷)𝐵 ↔ (𝐴𝐶𝐵𝐷))

Proof of Theorem brxp
StepHypRef Expression
1 df-br 4129 . 2 (𝐴(𝐶 × 𝐷)𝐵 ↔ ⟨𝐴, 𝐵⟩ ∈ (𝐶 × 𝐷))
2 opelxp 4802 . 2 (⟨𝐴, 𝐵⟩ ∈ (𝐶 × 𝐷) ↔ (𝐴𝐶𝐵𝐷))
31, 2bitri 184 1 (𝐴(𝐶 × 𝐷)𝐵 ↔ (𝐴𝐶𝐵𝐷))
Colors of variables: wff set class
Syntax hints:  wa 104  wb 105  wcel 2209  cop 3711   class class class wbr 4128   × cxp 4770
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4247  ax-pow 4309  ax-pr 4344
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3714  df-pr 3715  df-op 3717  df-br 4129  df-opab 4191  df-xp 4778
This theorem is referenced by:  brrelex12  4811  brel  4825  brinxp2  4840  eqbrrdva  4948  ssrelrn  4970  xpidtr  5176  xpcom  5332  tpostpos  6529  swoer  6829  erinxp  6877  ecopover  6901  ecopoverg  6904  ltxrlt  8385  ltxr  10160  znleval  14971
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