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Mirrors > Home > ILE Home > Th. List > dff4im | Unicode version |
Description: Property of a mapping. (Contributed by Jim Kingdon, 4-Jan-2019.) |
Ref | Expression |
---|---|
dff4im |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dff3im 5565 | . 2 | |
2 | df-br 3930 | . . . . . . . 8 | |
3 | ssel 3091 | . . . . . . . . 9 | |
4 | opelxp2 4574 | . . . . . . . . 9 | |
5 | 3, 4 | syl6 33 | . . . . . . . 8 |
6 | 2, 5 | syl5bi 151 | . . . . . . 7 |
7 | 6 | pm4.71rd 391 | . . . . . 6 |
8 | 7 | eubidv 2007 | . . . . 5 |
9 | df-reu 2423 | . . . . 5 | |
10 | 8, 9 | syl6bbr 197 | . . . 4 |
11 | 10 | ralbidv 2437 | . . 3 |
12 | 11 | pm5.32i 449 | . 2 |
13 | 1, 12 | sylib 121 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wcel 1480 weu 1999 wral 2416 wreu 2418 wss 3071 cop 3530 class class class wbr 3929 cxp 4537 wf 5119 |
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-reu 2423 df-v 2688 df-sbc 2910 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-opab 3990 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-fv 5131 |
This theorem is referenced by: (None) |
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