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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 7753 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
| 2 | 1 | anidms 577 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 Vcvv 3451 × cxp 5649 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 ax-sep 5249 ax-pow 5327 ax-pr 5391 ax-un 7740 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-opab 5168 df-xp 5657 df-rel 5658 |
| This theorem is used by: resiexg 7913 erex 8726 hartogslem2 9521 harwdom 9569 dfac8b 10091 ac10ct 10094 canthwe 10717 cicer 17961 ssclem 17974 ipolerval 18686 dfrngc2 20860 dfringc2 20889 rngcresringcat 20901 mat0op 22714 matecl 22720 matlmod 22724 mattposvs 22750 ustval 24502 isust 24503 restutopopn 24537 ressuss 24561 ispsmet 24603 ismet 24622 isxmet 24623 satef 36150 satefvfmla0 36152 satefvfmla1 36159 fin2so 38498 rtrclexlem 44575 isclintop 49248 isassintop 49251 rngccofvalALTV 49311 ringccofvalALTV 49345 2arymaptf 49708 relcic 50097 veronesematbasd 50924 veroquaddetzerod 50930 |
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