| 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 7758 | . 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 2146 Vcvv 3458 × cxp 5664 |
| 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 2148 ax-9 2156 ax-ext 2738 ax-sep 5262 ax-pow 5341 ax-pr 5409 ax-un 7745 |
| 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 2745 df-cleq 2758 df-clel 2841 df-ral 3083 df-rex 3093 df-rab 3420 df-v 3460 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-opab 5179 df-xp 5672 df-rel 5673 |
| This theorem is used by: resiexg 7918 erex 8728 hartogslem2 9515 harwdom 9563 dfac8b 10034 ac10ct 10037 canthwe 10654 cicer 17888 ssclem 17901 ipolerval 18613 dfrngc2 20764 dfringc2 20793 rngcresringcat 20805 mat0op 22613 matecl 22619 matlmod 22623 mattposvs 22649 ustval 24397 isust 24398 restutopopn 24432 ressuss 24456 ispsmet 24498 ismet 24517 isxmet 24518 satef 35929 satefvfmla0 35931 satefvfmla1 35938 fin2so 38299 rtrclexlem 44383 isclintop 49013 isassintop 49016 rngccofvalALTV 49076 ringccofvalALTV 49110 2arymaptf 49473 relcic 49864 |
| Copyright terms: Public domain | W3C validator |