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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 7686 | . 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 2109 Vcvv 3436 × cxp 5617 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-ext 2701 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 ax-un 7671 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-sb 2066 df-clab 2708 df-cleq 2721 df-clel 2803 df-ral 3045 df-rex 3054 df-rab 3395 df-v 3438 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-opab 5155 df-xp 5625 df-rel 5626 |
| This theorem is referenced by: cnvexg 7857 fabexd 7870 cofunexg 7884 oprabexd 7910 ofmresex 7920 opabex2 7992 offval22 8021 sexp2 8079 sexp3 8086 tposexg 8173 mapunen 9063 marypha1 9324 wdom2d 9472 ixpiunwdom 9482 ttrclexg 9619 fnct 10431 fpwwe2lem2 10526 fpwwe2lem4 10528 fpwwe2lem11 10535 fpwwelem 10539 canthwe 10545 pwxpndom 10560 gchhar 10573 trclexlem 14901 isacs1i 17563 brcic 17705 rescval2 17735 reschom 17737 rescabs 17740 setccofval 17989 estrccofval 18035 sylow2a 19498 gsumxp 19855 gsumxp2 19859 opsrval 21951 opsrtoslem2 21961 evlslem4 21981 matbas2d 22308 tsmsxp 24040 ustssel 24091 ustfilxp 24098 trust 24115 restutop 24123 trcfilu 24179 cfiluweak 24180 imasdsf1olem 24259 metustfbas 24443 restmetu 24456 rrxsca 25294 madeval 27764 perpln1 28659 perpln2 28660 isperp 28661 suppovss 32631 fsuppcurry1 32676 fsuppcurry2 32677 hashxpe 32761 gsumpart 33019 gsumwrd2dccat 33029 elrgspnlem2 33192 elrgspnsubrunlem2 33197 erlval 33207 rlocval 33208 rlocbas 33216 rlocaddval 33217 rlocmulval 33218 fedgmullem1 33612 fedgmullem2 33613 fedgmul 33614 metidval 33873 esumiun 34077 filnetlem3 36374 numiunnum 36464 bj-imdirvallem 37174 bj-imdirval2 37177 bj-imdirco 37184 bj-iminvval2 37188 isrngod 37898 isgrpda 37955 iscringd 37998 aks6d1c6lem2 42164 evlsevl 42564 wdom2d2 43028 unxpwdom3 43088 trclubgNEW 43611 relexpxpmin 43710 rfovd 43994 rfovcnvf1od 43997 fsovrfovd 44002 dvsinax 45914 sge0xp 46430 gpgvtx 48047 gpgiedg 48048 imasubclem1 49109 fucofvalg 49323 |
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