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| Mirrors > Home > MPE Home > Th. List > xpexd | Structured version Visualization version GIF version | ||
| Description: The Cartesian product of two sets is a set. (Contributed by Glauco Siliprandi, 26-Jun-2021.) |
| Ref | Expression |
|---|---|
| xpexd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| xpexd.2 | ⊢ (𝜑 → 𝐵 ∈ 𝑊) |
| Ref | Expression |
|---|---|
| xpexd | ⊢ (𝜑 → (𝐴 × 𝐵) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xpexd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 2 | xpexd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝑊) | |
| 3 | xpexg 7695 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐴 × 𝐵) ∈ V) | |
| 4 | 1, 2, 3 | syl2anc 584 | 1 ⊢ (𝜑 → (𝐴 × 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2113 Vcvv 3440 × cxp 5622 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-opab 5161 df-xp 5630 df-rel 5631 |
| This theorem is referenced by: cnvexg 7866 fabexd 7879 cofunexg 7893 oprabexd 7919 ofmresex 7929 opabex2 8001 offval22 8030 sexp2 8088 sexp3 8095 tposexg 8182 mapunen 9074 marypha1 9337 wdom2d 9485 ixpiunwdom 9495 ttrclexg 9632 fnct 10447 fpwwe2lem2 10543 fpwwe2lem4 10545 fpwwe2lem11 10552 fpwwelem 10556 canthwe 10562 pwxpndom 10577 gchhar 10590 trclexlem 14917 isacs1i 17580 brcic 17722 rescval2 17752 reschom 17754 rescabs 17757 setccofval 18006 estrccofval 18052 sylow2a 19548 gsumxp 19905 gsumxp2 19909 opsrval 22001 opsrtoslem2 22011 evlslem4 22031 matbas2d 22367 tsmsxp 24099 ustssel 24150 ustfilxp 24157 trust 24173 restutop 24181 trcfilu 24237 cfiluweak 24238 imasdsf1olem 24317 metustfbas 24501 restmetu 24514 rrxsca 25352 madeval 27828 perpln1 28782 perpln2 28783 isperp 28784 suppovss 32760 fsuppcurry1 32803 fsuppcurry2 32804 hashxpe 32887 gsumpart 33146 gsumwrd2dccat 33160 elrgspnlem2 33325 elrgspnsubrunlem2 33330 erlval 33340 rlocval 33341 rlocbas 33349 rlocaddval 33350 rlocmulval 33351 fedgmullem1 33786 fedgmullem2 33787 fedgmul 33788 metidval 34047 esumiun 34251 filnetlem3 36574 numiunnum 36664 bj-imdirvallem 37381 bj-imdirval2 37384 bj-imdirco 37391 bj-iminvval2 37395 isrngod 38095 isgrpda 38152 iscringd 38195 aks6d1c6lem2 42421 evlsevl 42813 wdom2d2 43273 unxpwdom3 43333 trclubgNEW 43855 relexpxpmin 43954 rfovd 44238 rfovcnvf1od 44241 fsovrfovd 44246 dvsinax 46153 sge0xp 46669 gpgvtx 48285 gpgiedg 48286 imasubclem1 49345 fucofvalg 49559 |
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