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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 7727 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
| 2 | 1 | anidms 574 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2141 Vcvv 3453 × cxp 5641 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 ax-sep 5243 ax-pow 5319 ax-pr 5387 ax-un 7712 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-opab 5160 df-xp 5649 df-rel 5650 |
| This theorem is referenced by: resiexg 7887 erex 8696 hartogslem2 9484 harwdom 9532 dfac8b 9980 ac10ct 9983 canthwe 10602 cicer 17829 ssclem 17842 ipolerval 18554 dfrngc2 20664 dfringc2 20693 rngcresringcat 20705 mat0op 22466 matecl 22472 matlmod 22476 mattposvs 22502 ustval 24250 isust 24251 restutopopn 24285 ressuss 24309 ispsmet 24351 ismet 24370 isxmet 24371 satef 35726 satefvfmla0 35728 satefvfmla1 35735 fin2so 38066 rtrclexlem 44152 isclintop 48789 isassintop 48792 rngccofvalALTV 48852 ringccofvalALTV 48886 2arymaptf 49234 relcic 49626 |
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