| 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 3245 |
. 2
| |
| 2 | visset 1804 |
. . . 4
| |
| 3 | 2 | opelxp 3204 |
. . 3
|
| 4 | snssi 2457 |
. . . . . . . 8
| |
| 5 | ssun3 2185 |
. . . . . . . 8
| |
| 6 | 4, 5 | syl 10 |
. . . . . . 7
|
| 7 | snex 2740 |
. . . . . . . 8
| |
| 8 | 7 | elpw 2394 |
. . . . . . 7
|
| 9 | 6, 8 | sylibr 200 |
. . . . . 6
|
| 10 | 9 | adantr 389 |
. . . . 5
|
| 11 | snssi 2457 |
. . . . . . . . . 10
| |
| 12 | ssun4 2186 |
. . . . . . . . . 10
| |
| 13 | 11, 12 | syl 10 |
. . . . . . . . 9
|
| 14 | 6, 13 | anim12i 333 |
. . . . . . . 8
|
| 15 | unss 2194 |
. . . . . . . 8
| |
| 16 | 14, 15 | sylib 198 |
. . . . . . 7
|
| 17 | df-pr 2403 |
. . . . . . 7
| |
| 18 | 16, 17 | syl5ss 2095 |
. . . . . 6
|
| 19 | zfpair2 2770 |
. . . . . . 7
| |
| 20 | 19 | elpw 2394 |
. . . . . 6
|
| 21 | 18, 20 | sylibr 200 |
. . . . 5
|
| 22 | 10, 21 | jca 288 |
. . . 4
|
| 23 | prex 2771 |
. . . . . 6
| |
| 24 | 23 | elpw 2394 |
. . . . 5
|
| 25 | df-op 2406 |
. . . . . 6
| |
| 26 | 25 | eleq1i 1529 |
. . . . 5
|
| 27 | 7, 19 | prss 2462 |
. . . . 5
|
| 28 | 24, 26, 27 | 3bitr4r 184 |
. . . 4
|
| 29 | 22, 28 | sylib 198 |
. . 3
|
| 30 | 3, 29 | sylbi 199 |
. 2
|
| 31 | 1, 30 | relssi 3238 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: unixpss 3248 xpexg 3249 rankxpu 4683 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-10 963 ax-11 964 ax-12 965 ax-13 966 ax-14 967 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 ax-sep 2693 ax-pow 2732 ax-pr 2769 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 978 df-sb 1168 df-eu 1375 df-mo 1376 df-clab 1457 df-cleq 1462 df-clel 1465 df-ne 1579 df-v 1803 df-dif 2039 df-un 2040 df-in 2041 df-ss 2043 df-nul 2271 df-pw 2392 df-sn 2402 df-pr 2403 df-op 2406 df-opab 2657 df-xp 3174 df-rel 3175 |