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| Mirrors > Home > MPE Home > Th. List > sqxpexg | Structured version Visualization version GIF version | ||
| Description: The Cartesian square of a set is a set. (Contributed by AV, 13-Jan-2020.) |
| Ref | Expression |
|---|---|
| sqxpexg | ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xpexg 7765 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
| 2 | 1 | anidms 577 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 Vcvv 3450 × cxp 5648 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-pow 5326 ax-pr 5390 ax-un 7752 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-opab 5167 df-xp 5656 df-rel 5657 |
| This theorem is used by: resiexg 7925 erex 8746 hartogslem2 9541 harwdom 9589 dfac8b 10114 ac10ct 10117 canthwe 10740 cicer 17987 ssclem 18000 ipolerval 18712 dfrngc2 20886 dfringc2 20915 rngcresringcat 20927 mat0op 22740 matecl 22746 matlmod 22750 mattposvs 22776 ustval 24528 isust 24529 restutopopn 24563 ressuss 24587 ispsmet 24629 ismet 24648 isxmet 24649 abweex 35770 satef 36268 satefvfmla0 36270 satefvfmla1 36277 fin2so 38624 rtrclexlem 44710 isclintop 49398 isassintop 49401 rngccofvalALTV 49461 ringccofvalALTV 49495 2arymaptf 49858 relcic 50253 veronesematbasd 51149 veroquaddetzerod 51155 |
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