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Theorem opabssxp 4849
Description: An abstraction relation is a subset of a related cross product. (Contributed by NM, 16-Jul-1995.)
Assertion
Ref Expression
opabssxp {⟨𝑥, 𝑦⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ 𝜑)} ⊆ (𝐴 × 𝐵)
Distinct variable groups:   𝑥,𝑦,𝐴   𝑥,𝐵,𝑦
Allowed substitution hints:   𝜑(𝑥, 𝑦)

Proof of Theorem opabssxp
StepHypRef Expression
1 simpl 109 . . 3 (((𝑥𝐴𝑦𝐵) ∧ 𝜑) → (𝑥𝐴𝑦𝐵))
21ssopab2i 4420 . 2 {⟨𝑥, 𝑦⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ 𝜑)} ⊆ {⟨𝑥, 𝑦⟩ ∣ (𝑥𝐴𝑦𝐵)}
3 df-xp 4780 . 2 (𝐴 × 𝐵) = {⟨𝑥, 𝑦⟩ ∣ (𝑥𝐴𝑦𝐵)}
42, 3sseqtrri 3283 1 {⟨𝑥, 𝑦⟩ ∣ ((𝑥𝐴𝑦𝐵) ∧ 𝜑)} ⊆ (𝐴 × 𝐵)
Colors of variables:    wff set class
This proof depends on syntax axioms:  wa 104  wcel 2209  wss 3220  {copab 4191   × cxp 4772
This proof depends on 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-ext 2220
This proof depends on definitions:  df-bi 117  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-in 3226  df-ss 3233  df-opab 4193  df-xp 4780
This theorem is used by:  brab2ga  4850  dmoprabss  6170  ecopovsym  6905  ecopovtrn  6906  ecopover  6907  ecopovsymg  6908  ecopovtrng  6909  ecopoverg  6910  opabfi  7247  netap  7620  2omotaplemap  7623  2omotaplemst  7624  enqex  7727  ltrelnq  7732  enq0ex  7806  ltrelpr  7872  enrex  8104  ltrelsr  8105  ltrelre  8200  ltrelxr  8386  dvdszrcl  12561  releqgg  14025  eqgex  14026  prdsex  14174  prdsval  14175  prdsbaslemss  14176  aprval  14593  aprap  14600  aprprop  14603  lmfval  15296  pellexlem3  16099  lgsquadlemofi  16207  lgsquadlem1  16208  lgsquadlem2  16209
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