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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 7750 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
| 2 | 1 | anidms 576 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 Vcvv 3455 × cxp 5661 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 ax-sep 5258 ax-pow 5338 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-opab 5175 df-xp 5669 df-rel 5670 |
| This theorem is referenced by: resiexg 7910 erex 8720 hartogslem2 9506 harwdom 9554 dfac8b 10016 ac10ct 10019 canthwe 10637 cicer 17864 ssclem 17877 ipolerval 18589 dfrngc2 20714 dfringc2 20743 rngcresringcat 20755 mat0op 22557 matecl 22563 matlmod 22567 mattposvs 22593 ustval 24341 isust 24342 restutopopn 24376 ressuss 24400 ispsmet 24442 ismet 24461 isxmet 24462 satef 35889 satefvfmla0 35891 satefvfmla1 35898 fin2so 38239 rtrclexlem 44325 isclintop 48955 isassintop 48958 rngccofvalALTV 49018 ringccofvalALTV 49052 2arymaptf 49415 relcic 49806 |
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