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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 4858 |
. 2
| |
| 2 | df-rel 4756 |
. 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-v 2815 df-in 3217 df-ss 3224 df-opab 4172 df-xp 4755 df-rel 4756 |
| This theorem is referenced by: xpiindim 4892 eliunxp 4894 opeliunxp2 4895 relres 5066 restidsing 5094 codir 5151 qfto 5152 cnvcnv 5215 dfco2 5262 unixpm 5298 ressn 5303 fliftcnv 5968 fliftfun 5969 opeliunxp2f 6469 reltpos 6481 tpostpos 6495 tposfo 6502 tposf 6503 swoer 6795 xpider 6840 erinxp 6843 xpcomf1o 7076 ltrel 8335 lerel 8337 fisumcom2 12124 fprodcom2fi 12312 txuni2 15121 txdis1cn 15143 xmeter 15301 reldvg 15544 lgsquadlem1 15950 lgsquadlem2 15951 |
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