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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 7726 | . 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 2109 Vcvv 3447 × cxp 5636 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-ext 2701 ax-sep 5251 ax-nul 5261 ax-pow 5320 ax-pr 5387 ax-un 7711 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-sb 2066 df-clab 2708 df-cleq 2721 df-clel 2803 df-ral 3045 df-rex 3054 df-rab 3406 df-v 3449 df-dif 3917 df-un 3919 df-in 3921 df-ss 3931 df-nul 4297 df-if 4489 df-pw 4565 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4872 df-opab 5170 df-xp 5644 df-rel 5645 |
| This theorem is referenced by: resiexg 7888 erex 8695 hartogslem2 9496 harwdom 9544 dfac8b 9984 ac10ct 9987 canthwe 10604 cicer 17768 ssclem 17781 ipolerval 18491 dfrngc2 20537 dfringc2 20566 rngcresringcat 20578 mat0op 22306 matecl 22312 matlmod 22316 mattposvs 22342 ustval 24090 isust 24091 restutopopn 24126 ressuss 24150 ispsmet 24192 ismet 24211 isxmet 24212 satef 35403 satefvfmla0 35405 satefvfmla1 35412 fin2so 37601 rtrclexlem 43605 isclintop 48195 isassintop 48198 rngccofvalALTV 48258 ringccofvalALTV 48292 2arymaptf 48641 relcic 49034 |
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