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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 7737 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → (𝐴 × 𝐵) ∈ V) | |
| 4 | 1, 2, 3 | syl2anc 595 | 1 ⊢ (𝜑 → (𝐴 × 𝐵) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2145 Vcvv 3457 × cxp 5650 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-ext 2737 ax-sep 5251 ax-pow 5327 ax-pr 5395 ax-un 7722 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-sb 2094 df-clab 2744 df-cleq 2757 df-clel 2840 df-ral 3080 df-rex 3090 df-rab 3418 df-v 3459 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-opab 5168 df-xp 5658 df-rel 5659 |
| This theorem is referenced by: cnvexg 7909 fabexd 7922 cofunexg 7934 oprabexd 7960 ofmresex 7970 opabex2 8042 offval22 8071 sexp2 8130 sexp3 8137 tposexg 8224 mapunen 9122 marypha1 9382 wdom2d 9530 ixpiunwdom 9540 ttrclexg 9680 fnct 10509 fpwwe2lem2 10605 fpwwe2lem4 10607 fpwwe2lem11 10614 fpwwelem 10618 canthwe 10624 pwxpndom 10639 gchhar 10652 trclexlem 15021 isacs1i 17703 brcic 17845 rescval2 17875 reschom 17877 rescabs 17880 setccofval 18129 estrccofval 18175 sylow2a 19680 gsumxp 20037 gsumxp2 20041 opsrval 22157 opsrtoslem2 22167 evlslem4 22187 evlsevl 22243 matbas2d 22541 tsmsxp 24273 ustssel 24324 ustfilxp 24331 trust 24347 restutop 24355 trcfilu 24411 cfiluweak 24412 imasdsf1olem 24491 metustfbas 24675 restmetu 24688 rrxsca 25516 madeval 27983 perpln1 28941 perpln2 28942 isperp 28943 suppovss 32938 fsuppcurry1 32981 fsuppcurry2 32982 hashxpe 33064 gsumpart 33296 gsumwrd2dccat 33311 elrgspnlem2 33476 elrgspnsubrunlem2 33481 erlval 33491 rlocval 33492 rlocbas 33501 rlocaddval 33502 rlocmulval 33503 fedgmullem1 33936 fedgmullem2 33937 fedgmul 33938 metidval 34197 esumiun 34401 filnetlem3 36753 numiunnum 36843 bj-imdirvallem 37684 bj-imdirval2 37687 bj-imdirco 37694 bj-iminvval2 37698 isrngod 38409 isgrpda 38466 iscringd 38509 aks6d1c6lem2 42800 wdom2d2 43624 unxpwdom3 43684 trclubgNEW 44206 relexpxpmin 44305 rfovd 44589 rfovcnvf1od 44592 fsovrfovd 44597 dvsinax 46485 sge0xp 47001 hoicvr 47120 gpgvtx 48663 gpgiedg 48664 imasubclem1 49733 fucofvalg 49947 |
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