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| Mirrors > Home > ILE Home > Th. List > relopabi | Unicode version | ||
| Description: A class of ordered pairs is a relation. (Contributed by Mario Carneiro, 21-Dec-2013.) |
| Ref | Expression |
|---|---|
| relopabi.1 |
|
| Ref | Expression |
|---|---|
| relopabi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | relopabi.1 |
. . . 4
| |
| 2 | df-opab 4174 |
. . . 4
| |
| 3 | 1, 2 | eqtri 2255 |
. . 3
|
| 4 | vex 2818 |
. . . . . . . 8
| |
| 5 | vex 2818 |
. . . . . . . 8
| |
| 6 | 4, 5 | opelvv 4802 |
. . . . . . 7
|
| 7 | eleq1 2297 |
. . . . . . 7
| |
| 8 | 6, 7 | mpbiri 168 |
. . . . . 6
|
| 9 | 8 | adantr 276 |
. . . . 5
|
| 10 | 9 | exlimivv 1948 |
. . . 4
|
| 11 | 10 | abssi 3315 |
. . 3
|
| 12 | 3, 11 | eqsstri 3272 |
. 2
|
| 13 | df-rel 4758 |
. 2
| |
| 14 | 12, 13 | 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-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-opab 4174 df-xp 4757 df-rel 4758 |
| This theorem is referenced by: relopab 4883 mptrel 4885 reli 4886 rele 4887 relcnv 5142 cotr 5146 relco 5263 reloprab 6103 reldmoprab 6140 eqer 6801 ecopover 6869 ecopoverg 6872 relen 6981 reldom 6982 enq0er 7752 aprcl 8922 aptap 8926 climrel 11969 brstruct 13238 |
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