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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 7467 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
2 | 1 | anidms 569 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2110 Vcvv 3494 × cxp 5547 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-opab 5121 df-xp 5555 df-rel 5556 |
This theorem is referenced by: resiexg 7613 erex 8307 hartogslem2 9001 harwdom 9048 dfac8b 9451 ac10ct 9454 canthwe 10067 ciclcl 17066 cicrcl 17067 cicer 17070 ssclem 17083 ipolerval 17760 mat0op 21022 matecl 21028 matlmod 21032 mattposvs 21058 ustval 22805 isust 22806 restutopopn 22841 ressuss 22866 ispsmet 22908 ismet 22927 isxmet 22928 satef 32658 satefvfmla0 32660 satefvfmla1 32667 fin2so 34873 rtrclexlem 39969 isclintop 44108 isassintop 44111 dfrngc2 44237 rngccofvalALTV 44252 dfringc2 44283 rngcresringcat 44295 ringccofvalALTV 44315 |
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