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Mirrors > Home > ILE Home > Th. List > brab2ga | Unicode version |
Description: The law of concretion for a binary relation. See brab2a 4664 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 4685 | . . . 4 | |
3 | 1, 2 | eqsstri 3179 | . . 3 |
4 | 3 | brel 4663 | . 2 |
5 | df-br 3990 | . . . 4 | |
6 | 1 | eleq2i 2237 | . . . 4 |
7 | 5, 6 | bitri 183 | . . 3 |
8 | brab2ga.1 | . . . 4 | |
9 | 8 | opelopab2a 4250 | . . 3 |
10 | 7, 9 | syl5bb 191 | . 2 |
11 | 4, 10 | biadan2 453 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1348 wcel 2141 cop 3586 class class class wbr 3989 copab 4049 cxp 4609 |
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 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-br 3990 df-opab 4051 df-xp 4617 |
This theorem is referenced by: reapval 8495 ltxr 9732 |
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