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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 7695 | . 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 2113 Vcvv 3440 × cxp 5622 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-opab 5161 df-xp 5630 df-rel 5631 |
| This theorem is referenced by: resiexg 7854 erex 8659 hartogslem2 9448 harwdom 9496 dfac8b 9941 ac10ct 9944 canthwe 10562 cicer 17730 ssclem 17743 ipolerval 18455 dfrngc2 20561 dfringc2 20590 rngcresringcat 20602 mat0op 22363 matecl 22369 matlmod 22373 mattposvs 22399 ustval 24147 isust 24148 restutopopn 24182 ressuss 24206 ispsmet 24248 ismet 24267 isxmet 24268 satef 35610 satefvfmla0 35612 satefvfmla1 35619 fin2so 37808 rtrclexlem 43857 isclintop 48453 isassintop 48456 rngccofvalALTV 48516 ringccofvalALTV 48550 2arymaptf 48898 relcic 49290 |
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