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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 4878 |
. 2
| |
| 2 | df-rel 4776 |
. 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 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-in 3226 df-ss 3233 df-opab 4188 df-xp 4775 df-rel 4776 |
| This theorem is referenced by: xpiindim 4912 eliunxp 4914 opeliunxp2 4915 relres 5086 restidsing 5114 codir 5171 qfto 5172 cnvcnv 5235 dfco2 5282 unixpm 5318 ressn 5323 fliftcnv 5991 fliftfun 5992 opeliunxp2f 6499 reltpos 6511 tpostpos 6525 tposfo 6532 tposf 6533 swoer 6825 xpider 6870 erinxp 6873 xpcomf1o 7113 ltrel 8377 lerel 8379 fisumcom2 12183 fprodcom2fi 12371 txuni2 15280 txdis1cn 15302 xmeter 15460 reldvg 15703 lgsquadlem1 16110 lgsquadlem2 16111 |
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