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| Mirrors > Home > ILE Home > Th. List > xpexg | Unicode version | ||
| Description: The cross product of two sets is a set. Proposition 6.2 of [TakeutiZaring] p. 23. (Contributed by NM, 14-Aug-1994.) |
| Ref | Expression |
|---|---|
| xpexg |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xpsspw 4838 |
. 2
| |
| 2 | unexg 4540 |
. . 3
| |
| 3 | pwexg 4270 |
. . 3
| |
| 4 | pwexg 4270 |
. . 3
| |
| 5 | 2, 3, 4 | 3syl 17 |
. 2
|
| 6 | ssexg 4228 |
. 2
| |
| 7 | 1, 5, 6 | sylancr 414 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-opab 4151 df-xp 4731 |
| This theorem is referenced by: xpexd 4841 xpex 4842 sqxpexg 4843 resiexg 5058 cnvexg 5274 coexg 5281 fex2 5503 fabexg 5524 resfunexgALT 6270 cofunexg 6271 fnexALT 6273 funexw 6274 opabex3d 6283 opabex3 6284 oprabexd 6289 ofmresex 6299 mpoexxg 6375 tposexg 6424 erex 6726 pmex 6822 mapex 6823 pmvalg 6828 elpmg 6833 fvdiagfn 6862 ixpexgg 6891 ixpsnf1o 6905 map1 6987 xpdom2 7015 xpdom3m 7018 xpen 7031 mapxpen 7034 xpfi 7124 djuex 7242 djuassen 7432 cc2lem 7485 shftfvalg 11396 climconst2 11869 prdsval 13374 prdsbaslemss 13375 pwsval 13392 pwsbas 13393 mulgnngsum 13732 releqgg 13825 eqgex 13826 eqgfval 13827 dvdsrvald 14126 dvdsrex 14131 aprval 14315 aprap 14319 psrval 14699 psrbasg 14707 psrplusgg 14711 lmfval 14936 txbasex 15000 txopn 15008 txcn 15018 txrest 15019 blfvalps 15128 xmetxp 15250 limccnp2lem 15419 limccnp2cntop 15420 dvfvalap 15424 |
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