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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 6269 cofunexg 6270 fnexALT 6272 funexw 6273 opabex3d 6282 opabex3 6283 oprabexd 6288 ofmresex 6298 mpoexxg 6374 tposexg 6423 erex 6725 pmex 6821 mapex 6822 pmvalg 6827 elpmg 6832 fvdiagfn 6861 ixpexgg 6890 ixpsnf1o 6904 map1 6986 xpdom2 7014 xpdom3m 7017 xpen 7030 mapxpen 7033 xpfi 7123 djuex 7241 djuassen 7431 cc2lem 7484 shftfvalg 11378 climconst2 11851 prdsval 13355 prdsbaslemss 13356 pwsval 13373 pwsbas 13374 mulgnngsum 13713 releqgg 13806 eqgex 13807 eqgfval 13808 dvdsrvald 14106 dvdsrex 14111 aprval 14295 aprap 14299 psrval 14679 psrbasg 14687 psrplusgg 14691 lmfval 14916 txbasex 14980 txopn 14988 txcn 14998 txrest 14999 blfvalps 15108 xmetxp 15230 limccnp2lem 15399 limccnp2cntop 15400 dvfvalap 15404 |
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