| Metamath Proof Explorer |
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Related theorems Unicode version |
| Description: A cross product is included in the power of the power of the union of its arguments. |
| Ref | Expression |
|---|---|
| xpsspw |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relxp 3344 |
. 2
| |
| 2 | visset 1859 |
. . . 4
| |
| 3 | 2 | opelxp 3297 |
. . 3
|
| 4 | snssi 2530 |
. . . . . . . 8
| |
| 5 | ssun3 2247 |
. . . . . . . 8
| |
| 6 | 4, 5 | syl 10 |
. . . . . . 7
|
| 7 | snex 2826 |
. . . . . . . 8
| |
| 8 | 7 | elpw 2461 |
. . . . . . 7
|
| 9 | 6, 8 | sylibr 198 |
. . . . . 6
|
| 10 | 9 | adantr 389 |
. . . . 5
|
| 11 | snssi 2530 |
. . . . . . . . . 10
| |
| 12 | ssun4 2248 |
. . . . . . . . . 10
| |
| 13 | 11, 12 | syl 10 |
. . . . . . . . 9
|
| 14 | 6, 13 | anim12i 331 |
. . . . . . . 8
|
| 15 | unss 2256 |
. . . . . . . 8
| |
| 16 | 14, 15 | sylib 196 |
. . . . . . 7
|
| 17 | df-pr 2471 |
. . . . . . 7
| |
| 18 | 16, 17 | syl5ss 2157 |
. . . . . 6
|
| 19 | zfpair2 2856 |
. . . . . . 7
| |
| 20 | 19 | elpw 2461 |
. . . . . 6
|
| 21 | 18, 20 | sylibr 198 |
. . . . 5
|
| 22 | 10, 21 | jca 286 |
. . . 4
|
| 23 | prex 2857 |
. . . . . 6
| |
| 24 | 23 | elpw 2461 |
. . . . 5
|
| 25 | df-op 2474 |
. . . . . 6
| |
| 26 | 25 | eleq1i 1580 |
. . . . 5
|
| 27 | 7, 19 | prss 2536 |
. . . . 5
|
| 28 | 24, 26, 27 | 3bitr4ri 182 |
. . . 4
|
| 29 | 22, 28 | sylib 196 |
. . 3
|
| 30 | 3, 29 | sylbi 197 |
. 2
|
| 31 | 1, 30 | relssi 3336 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: unixpss 3347 xpexg 3348 rankxpu 4857 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-10 1002 ax-11 1003 ax-12 1004 ax-13 1005 ax-14 1006 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 ax-sep 2777 ax-pow 2818 ax-pr 2855 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-ex 1017 df-sb 1209 df-eu 1421 df-mo 1422 df-clab 1506 df-cleq 1511 df-clel 1514 df-ne 1630 df-v 1858 df-dif 2101 df-un 2102 df-in 2103 df-ss 2105 df-nul 2333 df-pw 2459 df-sn 2470 df-pr 2471 df-op 2474 df-opab 2741 df-xp 3265 df-rel 3266 |