| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 7753 | . 2 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐴 ∈ 𝑉) → (𝐴 × 𝐴) ∈ V) | |
| 2 | 1 | anidms 577 | 1 ⊢ (𝐴 ∈ 𝑉 → (𝐴 × 𝐴) ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 Vcvv 3453 × cxp 5657 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2734 ax-sep 5255 ax-pow 5334 ax-pr 5402 ax-un 7740 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-opab 5172 df-xp 5665 df-rel 5666 |
| This theorem is used by: resiexg 7913 erex 8725 hartogslem2 9519 harwdom 9567 dfac8b 10038 ac10ct 10041 canthwe 10664 cicer 17901 ssclem 17914 ipolerval 18626 dfrngc2 20796 dfringc2 20825 rngcresringcat 20837 mat0op 22647 matecl 22653 matlmod 22657 mattposvs 22683 ustval 24435 isust 24436 restutopopn 24470 ressuss 24494 ispsmet 24536 ismet 24555 isxmet 24556 satef 36003 satefvfmla0 36005 satefvfmla1 36012 fin2so 38369 rtrclexlem 44464 isclintop 49130 isassintop 49133 rngccofvalALTV 49193 ringccofvalALTV 49227 2arymaptf 49590 relcic 49979 veronesematbasd 50821 veroquaddetzerod 50827 |
| Copyright terms: Public domain | W3C validator |