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| Mirrors > Home > ILE Home > Th. List > relxp | Unicode version | ||
| Description: A cross product is a relation. Theorem 3.13(i) of [Monk1] p. 37. (Contributed by NM, 2-Aug-1994.) |
| Ref | Expression |
|---|---|
| relxp |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xpss 4832 |
. 2
| |
| 2 | df-rel 4730 |
. 2
| |
| 3 | 1, 2 | mpbir 146 |
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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2802 df-in 3204 df-ss 3211 df-opab 4149 df-xp 4729 df-rel 4730 |
| This theorem is referenced by: xpiindim 4865 eliunxp 4867 opeliunxp2 4868 relres 5039 restidsing 5067 codir 5123 qfto 5124 cnvcnv 5187 dfco2 5234 unixpm 5270 ressn 5275 fliftcnv 5931 fliftfun 5932 opeliunxp2f 6399 reltpos 6411 tpostpos 6425 tposfo 6432 tposf 6433 swoer 6725 xpider 6770 erinxp 6773 xpcomf1o 7004 ltrel 8231 lerel 8233 fisumcom2 11989 fprodcom2fi 12177 txuni2 14970 txdis1cn 14992 xmeter 15150 reldvg 15393 lgsquadlem1 15796 lgsquadlem2 15797 |
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