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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 7453 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
2 | 1 | anidms 570 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2111 Vcvv 3441 × cxp 5517 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ral 3111 df-rex 3112 df-rab 3115 df-v 3443 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-opab 5093 df-xp 5525 df-rel 5526 |
This theorem is referenced by: resiexg 7601 erex 8296 hartogslem2 8991 harwdom 9039 dfac8b 9442 ac10ct 9445 canthwe 10062 ciclcl 17064 cicrcl 17065 cicer 17068 ssclem 17081 ipolerval 17758 mat0op 21024 matecl 21030 matlmod 21034 mattposvs 21060 ustval 22808 isust 22809 restutopopn 22844 ressuss 22869 ispsmet 22911 ismet 22930 isxmet 22931 satef 32776 satefvfmla0 32778 satefvfmla1 32785 fin2so 35044 rtrclexlem 40316 isclintop 44467 isassintop 44470 dfrngc2 44596 rngccofvalALTV 44611 dfringc2 44642 rngcresringcat 44654 ringccofvalALTV 44674 2arymaptf 45066 |
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