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Mirrors > Home > MPE Home > Th. List > opabssxp | Structured version Visualization version GIF version |
Description: An abstraction relation is a subset of a related Cartesian product. (Contributed by NM, 16-Jul-1995.) |
Ref | Expression |
---|---|
opabssxp | ⊢ {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝜑)} ⊆ (𝐴 × 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 472 | . . 3 ⊢ (((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝜑) → (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)) | |
2 | 1 | ssopab2i 4928 | . 2 ⊢ {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝜑)} ⊆ {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)} |
3 | df-xp 5044 | . 2 ⊢ (𝐴 × 𝐵) = {〈𝑥, 𝑦〉 ∣ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)} | |
4 | 2, 3 | sseqtr4i 3601 | 1 ⊢ {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) ∧ 𝜑)} ⊆ (𝐴 × 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 383 ∈ wcel 1977 ⊆ wss 3540 {copab 4642 × cxp 5036 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-in 3547 df-ss 3554 df-opab 4644 df-xp 5044 |
This theorem is referenced by: brab2ga 5117 dmoprabss 6640 ecopovsym 7736 ecopovtrn 7737 ecopover 7738 ecopoverOLD 7739 enqex 9623 lterpq 9671 ltrelpr 9699 enrex 9767 ltrelsr 9768 ltrelre 9834 ltrelxr 9978 rlimpm 14079 dvdszrcl 14826 prdsle 15945 prdsless 15946 sectfval 16234 sectss 16235 ltbval 19292 opsrle 19296 lmfval 20846 isphtpc 22601 bcthlem1 22929 bcthlem5 22933 lgsquadlem1 24905 lgsquadlem2 24906 lgsquadlem3 24907 ishlg 25297 perpln1 25405 perpln2 25406 isperp 25407 iscgra 25501 isinag 25529 isleag 25533 inftmrel 29065 isinftm 29066 metidval 29261 metidss 29262 faeval 29636 filnetlem2 31544 areacirc 32675 lcvfbr 33325 cmtfvalN 33515 cvrfval 33573 dicssdvh 35493 pellexlem3 36413 pellexlem4 36414 pellexlem5 36415 pellex 36417 rfovcnvf1od 37318 fsovrfovd 37323 |
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