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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 7697 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐴 × 𝐵) ∈ V) | |
| 4 | 1, 2, 3 | syl2anc 585 | 1 ⊢ (𝜑 → (𝐴 × 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 Vcvv 3430 × cxp 5622 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5231 ax-pow 5302 ax-pr 5370 ax-un 7682 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-opab 5149 df-xp 5630 df-rel 5631 |
| This theorem is referenced by: cnvexg 7868 fabexd 7881 cofunexg 7895 oprabexd 7921 ofmresex 7931 opabex2 8003 offval22 8031 sexp2 8089 sexp3 8096 tposexg 8183 mapunen 9077 marypha1 9340 wdom2d 9488 ixpiunwdom 9498 ttrclexg 9635 fnct 10450 fpwwe2lem2 10546 fpwwe2lem4 10548 fpwwe2lem11 10555 fpwwelem 10559 canthwe 10565 pwxpndom 10580 gchhar 10593 trclexlem 14947 isacs1i 17614 brcic 17756 rescval2 17786 reschom 17788 rescabs 17791 setccofval 18040 estrccofval 18086 sylow2a 19585 gsumxp 19942 gsumxp2 19946 opsrval 22034 opsrtoslem2 22044 evlslem4 22064 matbas2d 22398 tsmsxp 24130 ustssel 24181 ustfilxp 24188 trust 24204 restutop 24212 trcfilu 24268 cfiluweak 24269 imasdsf1olem 24348 metustfbas 24532 restmetu 24545 rrxsca 25373 madeval 27838 perpln1 28792 perpln2 28793 isperp 28794 suppovss 32769 fsuppcurry1 32812 fsuppcurry2 32813 hashxpe 32895 gsumpart 33139 gsumwrd2dccat 33154 elrgspnlem2 33319 elrgspnsubrunlem2 33324 erlval 33334 rlocval 33335 rlocbas 33343 rlocaddval 33344 rlocmulval 33345 fedgmullem1 33789 fedgmullem2 33790 fedgmul 33791 metidval 34050 esumiun 34254 filnetlem3 36578 numiunnum 36668 bj-imdirvallem 37510 bj-imdirval2 37513 bj-imdirco 37520 bj-iminvval2 37524 isrngod 38233 isgrpda 38290 iscringd 38333 aks6d1c6lem2 42624 evlsevl 43021 wdom2d2 43481 unxpwdom3 43541 trclubgNEW 44063 relexpxpmin 44162 rfovd 44446 rfovcnvf1od 44449 fsovrfovd 44454 dvsinax 46359 sge0xp 46875 hoicvr 46994 gpgvtx 48531 gpgiedg 48532 imasubclem1 49591 fucofvalg 49805 |
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