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Theorem opabssxp 4851
Description: An abstraction relation is a subset of a related cross product. (Contributed by NM, 16-Jul-1995.)
Assertion
Ref Expression
opabssxp {⟨𝑥, 𝑦⟩ ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 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 (((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝜑) → (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵))
21ssopab2i 4422 . 2 {⟨𝑥, 𝑦⟩ ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝜑)} ⊆ {⟨𝑥, 𝑦⟩ ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)}
3 df-xp 4782 . 2 (𝐴 × 𝐵) = {⟨𝑥, 𝑦⟩ ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)}
42, 3sseqtrri 3283 1 {⟨𝑥, 𝑦⟩ ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝜑)} ⊆ (𝐴 × 𝐵)
Colors of variables:    wff set class
This proof depends on syntax axioms:   ∧ wa 104   ∈ wcel 2209   ⊆ wss 3220  {copab 4192   × cxp 4774
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 4194  df-xp 4782
This theorem is used by:  brab2ga  4852  dmoprabss  6173  ecopovsym  6909  ecopovtrn  6910  ecopover  6911  ecopovsymg  6912  ecopovtrng  6913  ecopoverg  6914  opabfi  7252  netap  7627  2omotaplemap  7630  2omotaplemst  7631  enqex  7734  ltrelnq  7739  enq0ex  7813  ltrelpr  7879  enrex  8111  ltrelsr  8112  ltrelre  8207  ltrelxr  8393  dvdszrcl  12585  releqgg  14083  eqgex  14084  prdsex  14280  prdsval  14281  prdsbaslemss  14282  aprval  14701  aprap  14708  aprprop  14711  lmfval  15431  pellexlem3  16243  lgsquadlemofi  16412  lgsquadlem1  16413  lgsquadlem2  16414
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