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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 7705 | . 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 3442 × cxp 5630 |
| 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 5243 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| 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 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-opab 5163 df-xp 5638 df-rel 5639 |
| This theorem is referenced by: cnvexg 7876 fabexd 7889 cofunexg 7903 oprabexd 7929 ofmresex 7939 opabex2 8011 offval22 8040 sexp2 8098 sexp3 8105 tposexg 8192 mapunen 9086 marypha1 9349 wdom2d 9497 ixpiunwdom 9507 ttrclexg 9644 fnct 10459 fpwwe2lem2 10555 fpwwe2lem4 10557 fpwwe2lem11 10564 fpwwelem 10568 canthwe 10574 pwxpndom 10589 gchhar 10602 trclexlem 14929 isacs1i 17592 brcic 17734 rescval2 17764 reschom 17766 rescabs 17769 setccofval 18018 estrccofval 18064 sylow2a 19560 gsumxp 19917 gsumxp2 19921 opsrval 22013 opsrtoslem2 22023 evlslem4 22043 matbas2d 22379 tsmsxp 24111 ustssel 24162 ustfilxp 24169 trust 24185 restutop 24193 trcfilu 24249 cfiluweak 24250 imasdsf1olem 24329 metustfbas 24513 restmetu 24526 rrxsca 25364 madeval 27840 perpln1 28794 perpln2 28795 isperp 28796 suppovss 32770 fsuppcurry1 32813 fsuppcurry2 32814 hashxpe 32897 gsumpart 33156 gsumwrd2dccat 33171 elrgspnlem2 33336 elrgspnsubrunlem2 33341 erlval 33351 rlocval 33352 rlocbas 33360 rlocaddval 33361 rlocmulval 33362 fedgmullem1 33806 fedgmullem2 33807 fedgmul 33808 metidval 34067 esumiun 34271 filnetlem3 36593 numiunnum 36683 bj-imdirvallem 37429 bj-imdirval2 37432 bj-imdirco 37439 bj-iminvval2 37443 isrngod 38143 isgrpda 38200 iscringd 38243 aks6d1c6lem2 42535 evlsevl 42926 wdom2d2 43386 unxpwdom3 43446 trclubgNEW 43968 relexpxpmin 44067 rfovd 44351 rfovcnvf1od 44354 fsovrfovd 44359 dvsinax 46265 sge0xp 46781 gpgvtx 48397 gpgiedg 48398 imasubclem1 49457 fucofvalg 49671 |
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