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Mirrors > Home > ILE Home > Th. List > brab2ga | Unicode version |
Description: The law of concretion for a binary relation. See brab2a 4592 for alternate proof. TODO: should one of them be deleted? (Contributed by Mario Carneiro, 28-Apr-2015.) (Proof modification is discouraged.) |
Ref | Expression |
---|---|
brab2ga.1 | |
brab2ga.2 |
Ref | Expression |
---|---|
brab2ga |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | brab2ga.2 | . . . 4 | |
2 | opabssxp 4613 | . . . 4 | |
3 | 1, 2 | eqsstri 3129 | . . 3 |
4 | 3 | brel 4591 | . 2 |
5 | df-br 3930 | . . . 4 | |
6 | 1 | eleq2i 2206 | . . . 4 |
7 | 5, 6 | bitri 183 | . . 3 |
8 | brab2ga.1 | . . . 4 | |
9 | 8 | opelopab2a 4187 | . . 3 |
10 | 7, 9 | syl5bb 191 | . 2 |
11 | 4, 10 | biadan2 451 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1331 wcel 1480 cop 3530 class class class wbr 3929 copab 3988 cxp 4537 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-xp 4545 |
This theorem is referenced by: reapval 8338 ltxr 9562 |
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