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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 7697 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
| 2 | 1 | anidms 566 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 Vcvv 3430 × cxp 5622 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5231 ax-pow 5302 ax-pr 5370 ax-un 7682 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-opab 5149 df-xp 5630 df-rel 5631 |
| This theorem is referenced by: resiexg 7856 erex 8661 hartogslem2 9451 harwdom 9499 dfac8b 9944 ac10ct 9947 canthwe 10565 cicer 17764 ssclem 17777 ipolerval 18489 dfrngc2 20596 dfringc2 20625 rngcresringcat 20637 mat0op 22394 matecl 22400 matlmod 22404 mattposvs 22430 ustval 24178 isust 24179 restutopopn 24213 ressuss 24237 ispsmet 24279 ismet 24298 isxmet 24299 satef 35614 satefvfmla0 35616 satefvfmla1 35623 fin2so 37942 rtrclexlem 44061 isclintop 48695 isassintop 48698 rngccofvalALTV 48758 ringccofvalALTV 48792 2arymaptf 49140 relcic 49532 |
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