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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 7750 | . 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 2143 Vcvv 3455 × cxp 5661 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 ax-sep 5258 ax-pow 5338 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-opab 5175 df-xp 5669 df-rel 5670 |
| This theorem is referenced by: cnvexg 7922 fabexd 7935 cofunexg 7947 oprabexd 7973 ofmresex 7983 opabex2 8055 offval22 8084 sexp2 8143 sexp3 8150 tposexg 8237 mapunen 9135 marypha1 9395 wdom2d 9543 ixpiunwdom 9553 ttrclexg 9693 fnct 10522 fpwwe2lem2 10618 fpwwe2lem4 10620 fpwwe2lem11 10627 fpwwelem 10631 canthwe 10637 pwxpndom 10652 gchhar 10665 trclexlem 15033 isacs1i 17714 brcic 17856 rescval2 17886 reschom 17888 rescabs 17891 setccofval 18140 estrccofval 18186 sylow2a 19690 gsumxp 20047 gsumxp2 20051 opsrval 22178 opsrtoslem2 22188 evlslem4 22208 evlsevl 22264 matbas2d 22561 tsmsxp 24293 ustssel 24344 ustfilxp 24351 trust 24367 restutop 24375 trcfilu 24431 cfiluweak 24432 imasdsf1olem 24511 metustfbas 24695 restmetu 24708 rrxsca 25536 madeval 28003 perpln1 28968 perpln2 28969 isperp 28970 suppovss 33004 fsuppcurry1 33047 fsuppcurry2 33048 hashxpe 33130 gsumpart 33361 gsumwrd2dccat 33376 elrgspnlem2 33541 elrgspnsubrunlem2 33546 erlval 33556 rlocval 33557 rlocbas 33566 rlocaddval 33567 rlocmulval 33568 fedgmullem1 33997 fedgmullem2 33998 fedgmul 33999 metidval 34258 esumiun 34462 filnetlem3 36869 numiunnum 36959 bj-imdirvallem 37802 bj-imdirval2 37805 bj-imdirco 37812 bj-iminvval2 37816 isrngod 38527 isgrpda 38584 iscringd 38627 aks6d1c6lem2 42916 wdom2d2 43742 unxpwdom3 43802 trclubgNEW 44324 relexpxpmin 44423 rfovd 44707 rfovcnvf1od 44710 fsovrfovd 44715 dvsinax 46607 sge0xp 47123 hoicvr 47242 gpgvtx 48785 gpgiedg 48786 imasubclem1 49859 fucofvalg 50073 |
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