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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 6960 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
2 | 1 | anidms 677 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1990 Vcvv 3200 × cxp 5112 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-opab 4713 df-xp 5120 df-rel 5121 |
This theorem is referenced by: resiexg 7102 erex 7766 hartogslem2 8448 harwdom 8495 dfac8b 8854 ac10ct 8857 canthwe 9473 brcic 16458 ciclcl 16462 cicrcl 16463 cicer 16466 ssclem 16479 estrccofval 16769 ipolerval 17156 mat0op 20225 matecl 20231 matlmod 20235 mattposvs 20261 ustval 22006 isust 22007 restutopopn 22042 ressuss 22067 ispsmet 22109 ismet 22128 isxmet 22129 bj-diagval 33090 fin2so 33396 rtrclexlem 37923 isclintop 41843 isassintop 41846 dfrngc2 41972 rngccofvalALTV 41987 dfringc2 42018 rngcresringcat 42030 ringccofvalALTV 42050 |
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