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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 7705 | . 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 3442 × cxp 5630 |
| 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 5243 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| 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 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-opab 5163 df-xp 5638 df-rel 5639 |
| This theorem is referenced by: resiexg 7864 erex 8670 hartogslem2 9460 harwdom 9508 dfac8b 9953 ac10ct 9956 canthwe 10574 cicer 17742 ssclem 17755 ipolerval 18467 dfrngc2 20573 dfringc2 20602 rngcresringcat 20614 mat0op 22375 matecl 22381 matlmod 22385 mattposvs 22411 ustval 24159 isust 24160 restutopopn 24194 ressuss 24218 ispsmet 24260 ismet 24279 isxmet 24280 satef 35629 satefvfmla0 35631 satefvfmla1 35638 fin2so 37855 rtrclexlem 43969 isclintop 48564 isassintop 48567 rngccofvalALTV 48627 ringccofvalALTV 48661 2arymaptf 49009 relcic 49401 |
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