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| Mirrors > Home > ILE Home > Th. List > brxp | Unicode version | ||
| Description: Binary relation on a cross product. (Contributed by NM, 22-Apr-2004.) |
| Ref | Expression |
|---|---|
| brxp |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-br 4132 |
. 2
| |
| 2 | opelxp 4806 |
. 2
| |
| 3 | 1, 2 | bitri 184 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on 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-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-br 4132 df-opab 4194 df-xp 4782 |
| This theorem is used by: brrelex12 4815 brel 4829 brinxp2 4844 eqbrrdva 4952 ssrelrn 4974 xpidtr 5181 xpcom 5337 tpostpos 6539 swoer 6839 erinxp 6887 ecopover 6911 ecopoverg 6914 ltxrlt 8397 ltxr 10194 znleval 15097 gsumbagdiagfi 15176 psrass1filem 15177 |
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