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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 6858 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
2 | 1 | anidms 675 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 Vcvv 3173 × cxp 5036 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-opab 4644 df-xp 5044 df-rel 5045 |
This theorem is referenced by: resiexg 6994 erex 7653 hartogslem2 8331 harwdom 8378 dfac8b 8737 ac10ct 8740 canthwe 9352 brcic 16281 ciclcl 16285 cicrcl 16286 cicer 16289 ssclem 16302 estrccofval 16592 ipolerval 16979 mat0op 20044 matecl 20050 matlmod 20054 mattposvs 20080 ustval 21816 isust 21817 restutopopn 21852 ressuss 21877 ispsmet 21919 ismet 21938 isxmet 21939 bj-diagval 32267 fin2so 32566 rtrclexlem 36942 isclintop 41633 isassintop 41636 dfrngc2 41764 rngccofvalALTV 41779 dfringc2 41810 rngcresringcat 41822 ringccofvalALTV 41842 |
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