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Mirrors > Home > MPE Home > Th. List > xpsspw | Structured version Visualization version Unicode version |
Description: A Cartesian product is included in the power of the power of the union of its arguments. (Contributed by NM, 13-Sep-2006.) |
Ref | Expression |
---|---|
xpsspw |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relxp 5227 | . 2 | |
2 | opelxp 5146 | . . 3 | |
3 | snssi 4339 | . . . . . . . 8 | |
4 | ssun3 3778 | . . . . . . . 8 | |
5 | 3, 4 | syl 17 | . . . . . . 7 |
6 | snex 4908 | . . . . . . . 8 | |
7 | 6 | elpw 4164 | . . . . . . 7 |
8 | 5, 7 | sylibr 224 | . . . . . 6 |
9 | 8 | adantr 481 | . . . . 5 |
10 | df-pr 4180 | . . . . . . 7 | |
11 | snssi 4339 | . . . . . . . . . 10 | |
12 | ssun4 3779 | . . . . . . . . . 10 | |
13 | 11, 12 | syl 17 | . . . . . . . . 9 |
14 | 5, 13 | anim12i 590 | . . . . . . . 8 |
15 | unss 3787 | . . . . . . . 8 | |
16 | 14, 15 | sylib 208 | . . . . . . 7 |
17 | 10, 16 | syl5eqss 3649 | . . . . . 6 |
18 | zfpair2 4907 | . . . . . . 7 | |
19 | 18 | elpw 4164 | . . . . . 6 |
20 | 17, 19 | sylibr 224 | . . . . 5 |
21 | 9, 20 | jca 554 | . . . 4 |
22 | prex 4909 | . . . . . 6 | |
23 | 22 | elpw 4164 | . . . . 5 |
24 | vex 3203 | . . . . . . 7 | |
25 | vex 3203 | . . . . . . 7 | |
26 | 24, 25 | dfop 4401 | . . . . . 6 |
27 | 26 | eleq1i 2692 | . . . . 5 |
28 | 6, 18 | prss 4351 | . . . . 5 |
29 | 23, 27, 28 | 3bitr4ri 293 | . . . 4 |
30 | 21, 29 | sylib 208 | . . 3 |
31 | 2, 30 | sylbi 207 | . 2 |
32 | 1, 31 | relssi 5211 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wa 384 wcel 1990 cun 3572 wss 3574 cpw 4158 csn 4177 cpr 4179 cop 4183 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-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
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-opab 4713 df-xp 5120 df-rel 5121 |
This theorem is referenced by: unixpss 5234 xpexg 6960 rankxpu 8739 wunxp 9546 gruxp 9629 |
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