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Mirrors > Home > ILE Home > Th. List > dfmpt3 | Unicode version |
Description: Alternate definition for the maps-to notation df-mpt 3991. (Contributed by Mario Carneiro, 30-Dec-2016.) |
Ref | Expression |
---|---|
dfmpt3 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-mpt 3991 | . 2 | |
2 | velsn 3544 | . . . . . . 7 | |
3 | 2 | anbi2i 452 | . . . . . 6 |
4 | 3 | anbi2i 452 | . . . . 5 |
5 | 4 | 2exbii 1585 | . . . 4 |
6 | eliunxp 4678 | . . . 4 | |
7 | elopab 4180 | . . . 4 | |
8 | 5, 6, 7 | 3bitr4i 211 | . . 3 |
9 | 8 | eqriv 2136 | . 2 |
10 | 1, 9 | eqtr4i 2163 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wceq 1331 wex 1468 wcel 1480 csn 3527 cop 3530 ciun 3813 copab 3988 cmpt 3989 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-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-sbc 2910 df-csb 3004 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-iun 3815 df-opab 3990 df-mpt 3991 df-xp 4545 df-rel 4546 |
This theorem is referenced by: dfmpt 5597 dfmptg 5599 |
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