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Mirrors > Home > MPE Home > Th. List > df-rel | Structured version Visualization version GIF version |
Description: Define the relation predicate. Definition 6.4(1) of [TakeutiZaring] p. 23. For alternate definitions, see dfrel2 6032 and dfrel3 6041. (Contributed by NM, 1-Aug-1994.) |
Ref | Expression |
---|---|
df-rel | ⊢ (Rel 𝐴 ↔ 𝐴 ⊆ (V × V)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cA | . . 3 class 𝐴 | |
2 | 1 | wrel 5541 | . 2 wff Rel 𝐴 |
3 | cvv 3398 | . . . 4 class V | |
4 | 3, 3 | cxp 5534 | . . 3 class (V × V) |
5 | 1, 4 | wss 3853 | . 2 wff 𝐴 ⊆ (V × V) |
6 | 2, 5 | wb 209 | 1 wff (Rel 𝐴 ↔ 𝐴 ⊆ (V × V)) |
Colors of variables: wff setvar class |
This definition is referenced by: relxp 5554 pwvrel 5584 brrelex12 5586 0nelrel0 5594 releq 5633 nfrel 5636 sbcrel 5637 relss 5638 ssrel 5639 elrel 5653 rel0 5654 nrelv 5655 relsng 5656 relun 5666 reliun 5671 reliin 5672 relopabiv 5675 relopabi 5677 relopabiALT 5678 exopxfr2 5698 relop 5704 eqbrrdva 5723 elreldm 5789 cnvcnv 6035 relrelss 6116 cnviin 6129 dff3 6897 oprabss 7295 relmptopab 7433 1st2nd 7788 1stdm 7789 releldm2 7792 relmpoopab 7840 reldmtpos 7954 dmtpos 7958 dftpos4 7965 tpostpos 7966 iiner 8449 fundmen 8686 nqerf 10509 uzrdgfni 13496 hashfun 13969 reltrclfv 14545 homarel 17496 relxpchom 17642 ustrel 23063 utop2nei 23102 utop3cls 23103 metustrel 23404 pi1xfrcnv 23908 reldv 24721 dvbsss 24753 ssrelf 30628 1stpreimas 30712 fpwrelmap 30742 gsumhashmul 30989 metideq 31511 metider 31512 pstmfval 31514 esum2d 31727 txprel 33867 relsset 33876 elfuns 33903 fnsingle 33907 funimage 33916 bj-opelrelex 34999 bj-elid5 35024 mblfinlem1 35500 rngosn3 35768 xrnrel 36189 elrelsrel 36291 dihvalrel 38979 cnvcnvintabd 40825 cnvintabd 40828 clcnvlem 40848 rfovcnvf1od 41230 relopabVD 42135 sprsymrelfo 44565 |
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