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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 7729 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐴 × 𝐵) ∈ V) | |
| 4 | 1, 2, 3 | syl2anc 593 | 1 ⊢ (𝜑 → (𝐴 × 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2141 Vcvv 3453 × cxp 5643 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 ax-sep 5245 ax-pow 5321 ax-pr 5389 ax-un 7714 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-opab 5162 df-xp 5651 df-rel 5652 |
| This theorem is referenced by: cnvexg 7901 fabexd 7914 cofunexg 7926 oprabexd 7952 ofmresex 7962 opabex2 8034 offval22 8062 sexp2 8121 sexp3 8128 tposexg 8215 mapunen 9114 marypha1 9377 wdom2d 9525 ixpiunwdom 9535 ttrclexg 9675 fnct 10491 fpwwe2lem2 10587 fpwwe2lem4 10589 fpwwe2lem11 10596 fpwwelem 10600 canthwe 10606 pwxpndom 10621 gchhar 10634 trclexlem 15004 isacs1i 17672 brcic 17814 rescval2 17844 reschom 17846 rescabs 17849 setccofval 18098 estrccofval 18144 sylow2a 19642 gsumxp 19999 gsumxp2 20003 opsrval 22079 opsrtoslem2 22089 evlslem4 22109 evlsevl 22165 matbas2d 22463 tsmsxp 24195 ustssel 24246 ustfilxp 24253 trust 24269 restutop 24277 trcfilu 24333 cfiluweak 24334 imasdsf1olem 24413 metustfbas 24597 restmetu 24610 rrxsca 25438 madeval 27902 perpln1 28856 perpln2 28857 isperp 28858 suppovss 32833 fsuppcurry1 32876 fsuppcurry2 32877 hashxpe 32959 gsumpart 33204 gsumwrd2dccat 33219 elrgspnlem2 33385 elrgspnsubrunlem2 33390 erlval 33400 rlocval 33401 rlocbas 33410 rlocaddval 33411 rlocmulval 33412 fedgmullem1 33887 fedgmullem2 33888 fedgmul 33889 metidval 34148 esumiun 34352 filnetlem3 36704 numiunnum 36794 bj-imdirvallem 37636 bj-imdirval2 37639 bj-imdirco 37646 bj-iminvval2 37650 isrngod 38361 isgrpda 38418 iscringd 38461 aks6d1c6lem2 42752 wdom2d2 43576 unxpwdom3 43636 trclubgNEW 44158 relexpxpmin 44257 rfovd 44541 rfovcnvf1od 44544 fsovrfovd 44549 dvsinax 46451 sge0xp 46967 hoicvr 47086 gpgvtx 48629 gpgiedg 48630 imasubclem1 49689 fucofvalg 49903 |
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