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Mirrors > Home > ILE Home > Th. List > dmres | Unicode version |
Description: The domain of a restriction. Exercise 14 of [TakeutiZaring] p. 25. (Contributed by NM, 1-Aug-1994.) |
Ref | Expression |
---|---|
dmres |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2604 | . . . . 5 | |
2 | 1 | eldm2 4551 | . . . 4 |
3 | 19.41v 1823 | . . . . 5 | |
4 | vex 2604 | . . . . . . 7 | |
5 | 4 | opelres 4635 | . . . . . 6 |
6 | 5 | exbii 1536 | . . . . 5 |
7 | 1 | eldm2 4551 | . . . . . 6 |
8 | 7 | anbi1i 445 | . . . . 5 |
9 | 3, 6, 8 | 3bitr4i 210 | . . . 4 |
10 | 2, 9 | bitr2i 183 | . . 3 |
11 | 10 | ineqri 3159 | . 2 |
12 | incom 3158 | . 2 | |
13 | 11, 12 | eqtr3i 2103 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 102 wceq 1284 wex 1421 wcel 1433 cin 2972 cop 3401 cdm 4363 cres 4365 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-br 3786 df-opab 3840 df-xp 4369 df-dm 4373 df-res 4375 |
This theorem is referenced by: ssdmres 4651 dmresexg 4652 imadisj 4707 ndmima 4722 imainrect 4786 dmresv 4799 resdmres 4832 funimacnv 4995 fnresdisj 5029 fnres 5035 ssimaex 5255 fnreseql 5298 respreima 5316 ffvresb 5349 fsnunfv 5384 funfvima 5411 offres 5782 smores 5930 smores3 5931 smores2 5932 fnfi 6388 dmaddpi 6515 dmmulpi 6516 |
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