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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 7700 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐴 × 𝐵) ∈ V) | |
| 4 | 1, 2, 3 | syl2anc 590 | 1 ⊢ (𝜑 → (𝐴 × 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2119 Vcvv 3432 × cxp 5623 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2712 ax-sep 5225 ax-pow 5301 ax-pr 5369 ax-un 7685 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-sb 2074 df-clab 2719 df-cleq 2732 df-clel 2815 df-ral 3055 df-rex 3065 df-rab 3393 df-v 3434 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-opab 5142 df-xp 5631 df-rel 5632 |
| This theorem is referenced by: cnvexg 7871 fabexd 7884 cofunexg 7898 oprabexd 7924 ofmresex 7934 opabex2 8006 offval22 8034 sexp2 8093 sexp3 8100 tposexg 8187 mapunen 9081 marypha1 9344 wdom2d 9492 ixpiunwdom 9502 ttrclexg 9642 fnct 10457 fpwwe2lem2 10553 fpwwe2lem4 10555 fpwwe2lem11 10562 fpwwelem 10566 canthwe 10572 pwxpndom 10587 gchhar 10600 trclexlem 14954 isacs1i 17621 brcic 17763 rescval2 17793 reschom 17795 rescabs 17798 setccofval 18047 estrccofval 18093 sylow2a 19592 gsumxp 19949 gsumxp2 19953 opsrval 22029 opsrtoslem2 22039 evlslem4 22059 evlsevl 22115 matbas2d 22413 tsmsxp 24145 ustssel 24196 ustfilxp 24203 trust 24219 restutop 24227 trcfilu 24283 cfiluweak 24284 imasdsf1olem 24363 metustfbas 24547 restmetu 24560 rrxsca 25388 madeval 27849 perpln1 28803 perpln2 28804 isperp 28805 suppovss 32780 fsuppcurry1 32823 fsuppcurry2 32824 hashxpe 32906 gsumpart 33151 gsumwrd2dccat 33166 elrgspnlem2 33331 elrgspnsubrunlem2 33336 erlval 33346 rlocval 33347 rlocbas 33355 rlocaddval 33356 rlocmulval 33357 fedgmullem1 33820 fedgmullem2 33821 fedgmul 33822 metidval 34081 esumiun 34285 filnetlem3 36615 numiunnum 36705 bj-imdirvallem 37547 bj-imdirval2 37550 bj-imdirco 37557 bj-iminvval2 37561 isrngod 38272 isgrpda 38329 iscringd 38372 aks6d1c6lem2 42663 wdom2d2 43487 unxpwdom3 43547 trclubgNEW 44069 relexpxpmin 44168 rfovd 44452 rfovcnvf1od 44455 fsovrfovd 44460 dvsinax 46363 sge0xp 46879 hoicvr 46998 gpgvtx 48541 gpgiedg 48542 imasubclem1 49601 fucofvalg 49815 |
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