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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 7683 | . 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 2111 Vcvv 3436 × cxp 5614 |
| 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 2113 ax-9 2121 ax-ext 2703 ax-sep 5234 ax-nul 5244 ax-pow 5303 ax-pr 5370 ax-un 7668 |
| 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 2710 df-cleq 2723 df-clel 2806 df-ral 3048 df-rex 3057 df-rab 3396 df-v 3438 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4476 df-pw 4552 df-sn 4577 df-pr 4579 df-op 4583 df-uni 4860 df-opab 5154 df-xp 5622 df-rel 5623 |
| This theorem is referenced by: resiexg 7842 erex 8646 hartogslem2 9429 harwdom 9477 dfac8b 9922 ac10ct 9925 canthwe 10542 cicer 17713 ssclem 17726 ipolerval 18438 dfrngc2 20544 dfringc2 20573 rngcresringcat 20585 mat0op 22335 matecl 22341 matlmod 22345 mattposvs 22371 ustval 24119 isust 24120 restutopopn 24154 ressuss 24178 ispsmet 24220 ismet 24239 isxmet 24240 satef 35458 satefvfmla0 35460 satefvfmla1 35467 fin2so 37653 rtrclexlem 43655 isclintop 48244 isassintop 48247 rngccofvalALTV 48307 ringccofvalALTV 48341 2arymaptf 48690 relcic 49083 |
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